It is customary... to offer a grain of comfort, in the form of a statement that some peculiarly human characteristic could never be imitated by a machine. ... I cannot offer any such comfort, for I believe that no such bounds can be set.
— Alan Turing, Can digital computers think? (1951)
Source: http://www.turingarchive.org/viewer/?id=459&title=8
From a BBC Third Programme broadcast, 15 May 1951.
Topics: artificial intelligence