Dr. John McCarthy — Profile, Specialty, Credentials & Public Visibility

Summary

Updated 2026-06-09

He named the field. In 1956, McCarthy coined "artificial intelligence" at a Dartmouth workshop and spent the next half-century building the tools — Lisp, time-sharing, garbage collection — that made thinking machines possible.

Biography

About

Born September 4, 1927, McCarthy came up through American computer science at a moment when machines were calculators and the idea they might reason was science fiction. He co-authored the 1956 Dartmouth proposal that christened AI as a discipline, gathering a small circle of researchers who believed cognition could be formalized. He invented Lisp, the symbolic language that became AI's native tongue, and pioneered time-sharing and garbage collection — infrastructural breakthroughs that reshaped computing itself. McCarthy spent most of his career at Stanford, where he continued pushing the bou…

Voice

In their own words

Sourced, dated quotes from John McCarthy

John McCarthy

said1 Mar 2007

When there's a will to fail, obstacles can be found.

— John McCarthy (1983), quoted in The Sayings of John McCarthy, at www-formal.stanford.edu, March 1, 2007. Also quoted in Keith Cary Curtis

John McCarthy

said1995

He who refuses to do arithmetic is doomed to talk nonsense.

— PROGRESS AND ITS SUSTAINABILITY (1995 – )

John McCarthy

saidDec 1983

It's difficult to be rigorous about whether a machine really 'knows', 'thinks', etc., because we're hard put to define these things.

— "The Little Thoughts of Thinking Machines", Psychology Today, December 1983, pp. 46–49. Reprinted in Formalizing Common Sense: Papers By

John McCarthy

saidDec 1983

Program designers have a tendency to think of the users as idiots who need to be controlled.

— "The Little Thoughts of Thinking Machines", Psychology Today, December 1983, pp. 46–49. Reprinted in Formalizing Common Sense: Papers By

John McCarthy

said12 Feb 1979

One can even conjecture that Lisp owes its survival specifically to the fact that its programs are lists, which everyone, including me, has regarded as a disadvantage.

— John McCarthy, "History of Lisp," 12 February 1979; republished at www-formal.stanford.edu.

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