John Searle
John Rogers Searle (July 31, 1932 – September 17, 2025) was an American philosopher and the Willis S. and Marion Slusser Professor Emeritus of the Philosophy of Mind and Language at the University of California, Berkeley until the revocation of his emeritus status.[1][2] He is renowned for pioneering developments in the philosophy of language, particularly his theory of speech acts, which analyzes how utterances perform actions such as asserting, promising, or commanding.[3] In the philosophy of mind, Searle advanced biological naturalism, arguing that consciousness arises as a higher-level biological feature of brain processes, and famously critiqued computational theories of mind through the Chinese room thought experiment, which posits that syntax manipulation alone cannot produce semantic understanding or intentionality.[4] Later, his work extended to social ontology, elucidating how institutional facts like money or marriage emerge from collective intentionality imposed on brute physical facts.[5] Searle's career included active support for the Free Speech Movement at Berkeley in 1964 and numerous influential books, but was overshadowed in its final years by findings of sexual harassment and retaliation, resulting in the loss of his emeritus privileges.[6][7]