Success
Success is the attainment of predefined goals or valued outcomes, often manifesting as objective markers such as financial prosperity, professional advancement, or social status, alongside subjective elements like personal satisfaction, though its precise contours vary by cultural, individual, and disciplinary lenses.[1] In empirical terms, psychological and sociological inquiries frame success as multifaceted, influenced by intrinsic personal attributes and extrinsic environmental conditions, rather than a monolithic state.[2] Longitudinal studies underscore that while noncognitive factors like perseverance contribute, cognitive ability—encompassing intelligence and reasoning—stands as the predominant predictor of measurable success in domains including academic performance, occupational attainment, and even military efficacy.[3] Beyond definitional ambiguity, success measurement draws from economics and psychology, where proxies range from income and wealth metrics to subjective well-being indices that capture life satisfaction and emotional health.[4] Research reveals inconsistencies in these gauges; for instance, economic indicators like GDP per capita correlate with aggregate prosperity but falter in accounting for inequality or hedonic adaptation, wherein gains in material success yield diminishing psychological returns.[5] Controversies arise from popularized narratives overstating malleable traits—such as "grit" or deliberate practice—at the expense of immutable predictors like baseline intelligence, with meta-analyses affirming the latter's outsized causal role in high-stakes outcomes.[3] Causal realism demands recognizing success as probabilistically distributed, shaped by talent hierarchies, opportunity structures, and stochastic elements like timing, rather than universal accessibility via effort alone. This interplay of factors informs broader debates on success's societal implications, including meritocratic ideals versus systemic barriers, where empirical data challenges assumptions of equal potential across populations.[6] High-credibility sources, such as peer-reviewed longitudinal cohorts, prioritize these predictors over anecdotal or ideologically skewed accounts prevalent in less rigorous outlets.Definitions and Conceptual Foundations
Etymology and Historical Conceptions
The English word success derives from the Latin successus, the past participle of succedere ("to follow after" or "to come up"), formed from sub- ("after" or "up to") and cedere ("to go" or "yield").[7] In classical Roman usage around the 1st century BCE to 1st century CE, it denoted an outcome, result, or sequence of events, often connoting advancement, prosperity, or the attainment of a favorable position through succession or pursuit.[7] This etymological root emphasized sequential causality—following after prior actions—rather than isolated achievement, evolving in medieval Latin to incorporate notions of fortune and divine sequencing in texts like those of Boethius (c. 480–524 CE).[7] In ancient Greek philosophy, success aligned with eudaimonia, translated as flourishing or living well, which Aristotle (384–322 BCE) defined in his Nicomachean Ethics (c. 350 BCE) as the highest human good realized through virtuous activity in accordance with reason and one's telos (purpose).[8] This conception prioritized internal excellence and rational self-realization over external goods, positing that true success emerges causally from habitual virtue rather than chance or wealth. Stoic thinkers, such as Epictetus (c. 50–135 CE), reframed success as ataraxia (tranquility) achieved via the dichotomy of control: distinguishing impressions, desires, and actions (under personal power) from externals like outcomes or reputation, thereby insulating well-being from Fortune's variability.[9][10] Medieval Christian scholasticism integrated these ideas with theology, viewing success as subordinate to divine providence. Thomas Aquinas (1225–1274), in his Summa Theologiae (c. 1265–1274), described providence as God's rational governance directing all contingent events—including human endeavors—toward ultimate goods, where earthly successes reflect alignment with eternal order rather than autonomous merit.[11] This causal framework subordinated individual agency to predestined ends, contrasting pagan fortune with purposeful divine will, yet allowed secondary causes like virtue to contribute instrumentally. The Protestant Reformation marked a pivotal causal shift, with Calvinist doctrines (16th–17th centuries) promoting ascetic industriousness as evidence of election, linking worldly success in vocation to spiritual validation. Max Weber's 1905 analysis in The Protestant Ethic and the Spirit of Capitalism attributes this ethic—rooted in predestination and anti-hedonistic discipline—to the rational accumulation enabling modern capitalism, distinct from Catholic providentialism by emphasizing verifiable effort over ritual.[12] By the 18th-century Enlightenment, secular rationalism further decoupled success from theology, foregrounding empirical agency, merit through innovation, and progress via reason, as in Locke's labor theory of value (1690) or Smith's market dynamics (1776), where outcomes stemmed from individual initiative amid natural laws rather than fate or grace.[13]Modern Empirical Definitions
In empirical psychology, success is defined as the attainment of predefined, measurable goals through sustained, directed effort, where goals represent desired future states linked to competence or adaptive outcomes.[14] This formulation emphasizes verifiable progress over subjective fulfillment, as evidenced by longitudinal tracking of goal-directed behaviors correlating with objective markers like educational completion and occupational advancement.[15] Longitudinal studies, such as Lewis Terman's Genetic Studies of Genius initiated in 1921, provide foundational data by following 1,528 high-IQ children into adulthood, revealing that early cognitive advantages predicted higher rates of professional success, including leadership roles and income levels, though not universally without effort or opportunity.[16] These findings underscore success as a causal chain from initial capabilities to realized achievements, with intelligence accounting for approximately 20-25% of variance in socioeconomic outcomes across meta-analyses of longitudinal data.[17] Empirical distinctions arise between outcome-based success—quantifiable via proxies like wealth accumulation or status elevation—and process-based success, involving resilience and iterative adaptation amid setbacks, as meta-analyses show intelligence explains 20-40% of variance in such trajectories but leaves substantial room for behavioral persistence.[17] Relativistic views equating success to personal satisfaction are set aside in favor of first-principles anchors: net positive effects on individual or lineage survival and reproduction, proxied by intergenerational income mobility rates, where children exceed parental earnings in 50% of U.S. cases from 1940-1980 cohorts, declining to 40% by 1980-1990 due to stagnant real wages.[18] Recent refinements incorporate dynamic mechanisms, defining success as compounded advantages where prior wins enhance future probabilities through physiological confidence boosts, psychological momentum, and resource allocation, as modeled in 2023 sports economics analyses of "success-breeds-success" effects across competitions.[19] These data-driven models, drawn from sequential performance datasets, quantify how initial triumphs increase subsequent win rates by 5-15% via feedback loops, integrating AI-tracked metrics for broader applicability beyond athletics.[19]Empirical Determinants of Success
Psychological and Behavioral Factors
Self-control, defined as the capacity to regulate impulses and delay gratification, has been linked to a range of adult outcomes including financial stability, health, and avoidance of criminality, as evidenced by the Dunedin Multidisciplinary Health and Development Study, a 40-year longitudinal investigation of over 1,000 individuals that controlled for socioeconomic status and intelligence.[20] In this cohort, childhood self-control measured via teacher and parental ratings predicted outcomes along a gradient, with higher levels correlating to reduced substance dependence and better personal finances decades later, independent of early family adversity.[21] Twin studies further indicate that while self-control exhibits moderate heritability (meta-analytic estimate around 60%), environmental influences, including behavioral training, contribute significantly to its development and stability, supporting the role of personal agency over deterministic factors.[22] Grit, comprising perseverance and passion for long-term goals, incrementally predicts achievement beyond cognitive ability in demanding contexts such as military training. A 2019 analysis of over 10,000 West Point cadets over a decade found grit associated with retention and performance, though cognitive factors remained the strongest pre-training predictors; grit added explanatory variance in non-academic persistence tasks.[23] Angela Duckworth's foundational work, drawing from cadet data, showed grit accounting for about 4% unique variance in success metrics like completion of initial training, outperforming talent measures in sustained effort scenarios.[24] Conscientiousness, a Big Five personality dimension encompassing traits like organization and dependability, robustly forecasts job performance across occupations and levels. Meta-analyses confirm its consistent positive correlation (corrected ρ ≈ 0.31) with supervisory ratings and objective productivity, surpassing other traits and often equaling or exceeding general mental ability in long-term career outcomes.[25] This trait manifests through habitual self-regulation, where incremental behavioral consistencies compound to enhance reliability and output, as supported by longitudinal data linking early conscientious behaviors to enduring professional success.[26] Growth mindset interventions, which encourage viewing abilities as malleable through effort, have demonstrated modest effects on academic achievement, particularly among underperforming students. A 2019 national experiment involving 12,000 U.S. adolescents found brief online mindset training increased GPA by 0.10 points on average for lower-achievers, fostering self-reinforcing motivation cycles, though benefits were context-specific and not universal.[27] Subsequent reviews highlight variability, with effects around 10% in targeted settings but limited generalizability, underscoring the need for implementation fidelity over blanket attribution to mindset alone.[28] These findings align with causal evidence from randomized trials isolating behavioral reframing from confounds, emphasizing trainable psychological orientations.[29]Cognitive and Biological Influences
General intelligence, often measured by IQ, emerges as a robust predictor of success across domains such as occupational attainment and academic performance, accounting for approximately 25-40% of variance in job performance outcomes according to meta-analytic reviews of large-scale studies.[30] Higher IQ correlates with superior problem-solving and pattern recognition, enabling individuals to navigate complex tasks more effectively. A 2025 study from the University of Bath demonstrated that higher-IQ individuals produce more accurate probabilistic forecasts and realistic predictions under uncertainty, facilitating better decision-making in ambiguous environments.[31][32] Heritability estimates for cognitive traits underpinning success, including executive functions like working memory and inhibitory control, range from 50% to 80% in adulthood, based on twin and genomic studies distinguishing genetic from environmental contributions.[33] These traits show substantial genetic overlap with general intelligence, with common genetic factors explaining 53-67% of variance in executive functions and IQ.[33] In military and academic cohorts, genetic influences on executive function predict performance differentials, independent of shared rearing environments.[34] Neuroimaging evidence reveals structural and functional efficiencies in the prefrontal cortex among high achievers, correlating with enhanced executive control and persistence. High performers exhibit greater prefrontal cortex volume and connectivity, supporting efficient information processing during goal-directed tasks.[35] Functional MRI studies link dorsomedial prefrontal activity to sustained effort in achievers, distinguishing them from lower performers via optimized neural resource allocation.[36] From an evolutionary perspective, cognitive traits conducive to success, such as calibrated risk assessment, likely conferred fitness advantages in ancestral environments characterized by scarcity and predation risks. Intelligence and executive function enabled adaptive foraging, social coalition-building, and threat evasion, with success serving as a proxy for reproductive viability.[37] Risk-sensitive decision-making, shaped by selection pressures in small-group settings, persists as a heritable mechanism promoting survival-oriented behaviors.[37] While cognitive endowments establish upper bounds on potential achievements, they interact with non-genetic factors; 2019 research from the University of Pennsylvania indicates that high cognitive ability predicts academic and military outcomes but requires complementary traits like physical resilience to overcome ceilings in integrated performance metrics.[23] Absent reinforcement through sustained application, innate potentials yield diminishing returns, as evidenced by longitudinal data showing cognitive variance alone insufficient for elite outcomes without behavioral alignment.[23]Socioeconomic and Environmental Contributors
Socioeconomic factors such as access to quality education and professional networks facilitate success but exert influence secondary to individual agency, as evidenced by models prioritizing personal attributes. A 2018 analysis by the London School of Economics identified 13 empirically supported factors for career success, including human capital development, motivation, and proactive behaviors, which collectively outweigh networking contacts in predictive power for income and advancement.[38] Similarly, a Walden University review emphasized that while education provides foundational tools, sustained professional achievement hinges more on personal commitment and adaptability, enabling navigation of opportunities irrespective of initial endowments.[39] Early family environments and interventions shape trajectories through enhanced capabilities, yet long-term gains depend on internalized traits like self-regulation. The Perry Preschool Project, conducted from 1962 to 1967 with low-income African American children in Ypsilanti, Michigan, delivered a high-quality early education program yielding a societal return on investment of 7-10% annually, manifested in higher adult earnings (up to 19% increase), reduced criminality (fewer arrests by age 40), and intergenerational benefits such as improved child school achievement.[40][41] These outcomes, tracked over five decades, stem from program-induced improvements in executive function and motivation, which fade without ongoing self-efficacy, underscoring environment's role in bootstrapping rather than supplanting personal drive.[42] Free-market economic incentives promote mobility by rewarding merit over ascriptive status, countering deterministic views of entrenched barriers. In the United States, administrative data from 1971-1993 birth cohorts reveal stable intergenerational income elasticity of approximately 0.4, indicating that parental income explains 40% of variation in child outcomes, with the remainder attributable to individual efforts and choices, enabling substantial quintile shifts across generations.[43] Regions with lower residential segregation and stronger local economies exhibit higher absolute upward mobility rates—for instance, children from bottom-quintile families reaching the top quintile at probabilities up to 12.9% in high-mobility areas like Salt Lake City—demonstrating how market dynamics and policy environments amplify personal merit.[44] Empirical syntheses affirm that environmental contributors, while influential, are often outpaced by noncognitive and behavioral factors in forecasting success metrics. A representative Swedish study of over 5,000 adults found personality traits—such as conscientiousness and emotional stability—correlate with annual income and occupational prestige at levels comparable to childhood socioeconomic background, explaining similar variances in economic outcomes.[45] Longitudinal evidence further highlights that noncognitive skills like perseverance predict life achievements beyond socioeconomic origins, with genetic and experiential components enabling overrides of adverse starts in 45-60% of cases deviating from SES-achievement gradients.[46][47] This weighting aligns with causal mechanisms where external scaffolds amplify but do not substitute for intrinsic predictors.Measures and Metrics of Success
Objective Indicators
Objective indicators of success provide verifiable, data-driven metrics that allow for empirical assessment independent of personal perception, focusing on outcomes like financial attainment, educational completion, and professional outputs. These measures emphasize falsifiable benchmarks, such as income thresholds, attainment rates, and performance longevity, drawn from labor economics and longitudinal datasets. For instance, in the United States, median weekly earnings for full-time workers with a bachelor's degree reached $1,533 in the third quarter of 2024, representing a 62% premium over the $946 earned by high school diploma holders, underscoring education's role as a proxy for economic success.[48] [49] Wealth and income metrics quantify success through absolute levels and mobility trajectories. Intergenerational income mobility, adjusted for inequality via Gini coefficients, reveals pathways from lower to higher quintiles; in the US, the Gini coefficient for individual earnings stood at 0.42 in 2023, indicating persistent disparities where upward mobility correlates inversely with local wealth inequality, with simulated reductions in inequality boosting predicted mobility to the 53rd percentile.[50] [51] Professional benchmarks include CEO tenure, averaging 7.2 years for S&P 500 leaders as of 2022, with extended durations signaling sustained organizational performance amid pressures shortening overall tenures to 6.8 years for outgoing CEOs in early 2025.[52] [53] Achievement proxies extend to innovation and output counts. Patent filings serve as a common, albeit imperfect, indicator of inventive success, with counts and citations proxying innovation value despite limitations in capturing non-patented advances or strategic filings.[54] [55] In competitive domains, win rates quantify efficacy; for example, success rates in athletic plays—gaining meaningful yardage relative to down-and-distance—offer standardized evaluations beyond raw victories.[56] Longitudinal studies ground individual trajectories in tracked outcomes. The 1921 Terman study of high-IQ children (IQ ≥135) demonstrated elevated success metrics, including higher educational attainment rates and occupational prestige, with the most successful participants averaging five years longer lifespans than the least.[57] [58] In the post-2020 era, digital metrics emerge for tech-driven success. Startup survival rates, at 81.7% after one year in 2021, drop to around 50% by five years, positioning endurance beyond a decade—achieved by 30%—as a rare benchmark amid 90% overall failure.[59] [60] For developers, GitHub contributions, including commit frequency and pull requests, proxy productivity and visibility, though they correlate imperfectly with impact due to variability in code quality and collaboration styles.[61] [62]Subjective and Psychological Evaluations
Subjective evaluations of success often rely on self-reported life satisfaction scales, such as those employed in the Gallup World Poll and World Values Survey, which typically use a 0-10 ladder scale where respondents rate their current life against an ideal best possible life.[63][64] These measures show moderate positive correlations with objective indicators like income and health status, as higher satisfaction levels align with greater economic prosperity and physical well-being across countries.[63][65] However, hedonic adaptation undermines their reliability, as individuals rapidly return to baseline satisfaction levels following positive events like promotions or wealth gains, a phenomenon documented in longitudinal analyses revealing temporary boosts rather than sustained changes.[66] Psychological constructs like flow, introduced by Mihaly Csikszentmihalyi in his 1990 work on optimal experiences, describe states of intrinsic motivation and absorption in challenging tasks matched to one's skills, fostering a sense of accomplishment independent of external validation.[67] These experiences align with eudaimonic well-being, emphasizing purpose and growth over mere pleasure, and have been empirically linked to enhanced performance in creative and professional domains.[68] Neuroimaging studies using fMRI confirm flow's distinct neural signatures, including reduced prefrontal activity indicative of effortless focus and heightened reward processing in the basal ganglia, validating self-reports against brain activity patterns during induced flow tasks.[69] Gender variances in subjective success evaluations reveal patterns where men tend to emphasize status and achievement-oriented metrics, such as career advancement, while women prioritize relational factors like family and social connections, though both are associated with improved empirical outcomes like health and stability.[70][71] Age-related shifts show younger adults reporting higher volatility in satisfaction tied to ambitions, stabilizing in later life with interpersonal skills emerging as a key predictor across genders.[72] These differences persist even after controlling for power dynamics, suggesting innate perceptual biases rather than solely environmental influences.[70] Critiques highlight the limited predictive power of subjective measures for long-term success, as 2010s longitudinal studies demonstrate that initial high life satisfaction often overestimates future achievements due to adaptation and bidirectional causality, where objective gains drive reports more than vice versa.[73] While subjective well-being forecasts health behaviors and longevity to some extent, its utility for forecasting career or economic success wanes over decades, with personality traits like purpose in life proving more robust predictors than transient satisfaction ratings.[74][75] This discrepancy underscores the need to cross-validate self-reports against behavioral and outcome data to avoid conflating felt success with verifiable attainment.Success Across Domains
In Personal Development and Well-Being
Success in personal development manifests as self-mastery, characterized by deliberate cultivation of habits, resilience, and psychological resources that foster long-term flourishing, defined in positive psychology as thriving through positive emotions, engagement, relationships, meaning, and accomplishment (PERMA model).[76] Empirical research underscores that individuals achieve this by prioritizing controllable factors like consistent practice over external variables, with flourishing linked to reduced mental health risks and enhanced life satisfaction.[77] Self-mastery involves environmental mastery—autonomous regulation of one's surroundings—and correlates with sustained well-being independent of socioeconomic origins.[78] Habit formation serves as a foundational mechanism, with meta-analyses indicating that new behaviors solidify in approximately 66 days on average, though variability arises from individual differences in consistency and complexity.[79] Resilient individuals exhibit core habits such as adaptive problem-solving and optimism, enabling recovery from setbacks and personal growth; studies from the 2020s link grit—perseverance toward long-term goals—to academic and life success amid adversities like the COVID-19 pandemic.[80] Brian Tracy identifies positive mental attitude and good work habits as pivotal, alongside education, arguing that proactive mindset shifts amplify outcomes by focusing effort on high-leverage actions rather than passive waiting.[81] Integrating physical health sustains vitality essential for well-being, as World Health Organization guidelines recommend 150–300 minutes of moderate-intensity aerobic activity weekly for adults, yielding benefits like improved mental discipline, reduced depression risk, and enhanced resilience.[82] Regular exercise bolsters psychological flourishing by regulating emotions and building cognitive endurance, with evidence showing it mitigates mental health declines more effectively than sedentary routines.[83] Verified case studies of self-made individuals highlight agency-driven trajectories: Sara Blakely, founder of Spanx, transformed $5,000 savings into a billion-dollar brand through persistent prototyping and sales persistence, crediting self-belief and iterative learning over chance. Similarly, Oprah Winfrey overcame childhood poverty via disciplined education and resilience-building habits, achieving media dominance through focused content creation and audience engagement, demonstrating causal paths from internal drive to flourishing absent reliance on luck narratives.[84] These examples align with patterns where success stems from compounded small actions, not probabilistic windfalls.[85]In Professional and Economic Contexts
Success in professional contexts is frequently linked to personal attributes such as grit and adaptability, which enable entrepreneurs and leaders to navigate high failure risks in competitive markets. Approximately 90% of startups fail within the first few years, with only 10% achieving long-term viability, underscoring the causal role of founder perseverance in overcoming operational and market challenges.[60] Studies from the 2010s and onward demonstrate that entrepreneurial grit—defined as sustained passion and perseverance for long-term goals—correlates with higher venture performance, as gritty founders invest greater effort and persist through setbacks, leading to improved outcomes in resource-scarce environments.[86] [87] In volatile economies, adaptability yields measurable returns by allowing firms to pivot amid disruptions, such as supply chain shifts or demand fluctuations, with agile leaders transforming uncertainty into competitive advantages.[88] Leadership development research highlights the importance of constructing a "future leader identity," where individuals envision and internalize themselves as effective executives, fostering behaviors that drive organizational success in dynamic settings.[89] Empirical analyses tie these traits to meritocratic incentives, where high performers in free-market systems capture disproportionate rewards through innovation and execution, rather than relying on institutional favoritism. Economic success metrics reveal that free enterprise environments promote greater outcome variance and mobility compared to redistribution-heavy systems, as lower barriers to entry and property rights incentivize risk-taking and productivity. In the United States, intergenerational income mobility benefits from economic freedom, with studies showing direct positive effects on upward movement, evidenced by real median family income rising 89% over 35 years across income quintiles.[90] [91] This contrasts with lower mobility in economies emphasizing redistribution, where reduced incentives for entrepreneurship correlate with stagnant variance in earnings potential, affirming causal links between market liberalism and professional advancement.[90]In Scientific and Intellectual Endeavors
Success in scientific endeavors entails generating falsifiable hypotheses that endure rigorous empirical testing, yielding reproducible findings that advance explanatory power and predictive accuracy. Metrics such as the h-index, introduced by Jorge E. Hirsch in 2005, assess a researcher's influence by identifying the largest number h of papers cited at least h times each, with 84% of Nobel laureates achieving an h-index of 30 or higher.[92] Nobel Prizes themselves serve as peer-recognized indicators of transformative contributions, awarded since 1901 across categories like physics and physiology or medicine, though they emphasize consolidated impacts over nascent fields.[92] Citation trajectories, adjusted for discipline-specific norms, further quantify diffusion of ideas, but require caution against self-citation inflation or predatory journals.[93] Intellectual breakthroughs often stem from deriving principles from foundational observations, as exemplified by Isaac Newton's Philosophiæ Naturalis Principia Mathematica, published on July 5, 1687, which unified terrestrial and celestial mechanics through three laws of motion and universal gravitation, enabling precise orbital predictions verified over centuries.[94] This work's enduring success arose from deductive reasoning grounded in empirical data, such as Kepler's laws, rather than inductive generalization alone, illustrating causal realism in modeling natural phenomena. Personality factors contribute causally, with the openness to experience trait in the Big Five model—encompassing intellectual curiosity and unconventional thinking—predicting divergent achievements, though its intellect subfacet more specifically aligns with scientific creativity over artistic pursuits.[95] Research integrity underpins verifiable progress, yet a 2021 qualitative multi-actor study across European institutions revealed tensions wherein success metrics like publication counts incentivize questionable practices, such as selective reporting, undermining long-term replicability essential for cumulative knowledge.[96] Karl Popper's falsificationism posits that scientific advancement occurs via bold conjectures subjected to potential refutation, demarcating pseudoscience and fostering theories resilient to disconfirmation, as opposed to unfalsifiable dogmas.[97] In hypothesis testing, Bayesian updating mechanizes this by revising prior probabilities with likelihoods from data, yielding posterior odds that favor models with higher predictive utility, as demonstrated in clinical trial designs where evidence accumulation refines causal inferences iteratively.[98] Such probabilistic intersections of evidence enable discernment of signal from noise, causal from correlative, propelling fields like cosmology—witness the 1965 detection of cosmic microwave background radiation, confirming Big Bang predictions and earning a 1978 Nobel.[99]