“May not machines carry out something which ought to be described as thinking but which is very different from what a man does?”
Computing Machinery and Intelligence (1950)
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Alan Turing 33
British mathematician, logician, cryptanalyst, and computer… 1912–1954Related quotes
John Mingers (2006) Realising Systems Thinking: Knowledge and Action in Management Science. p. 87.
Introduction
Higher Mathematics for Chemical Students (1911)

Contingencies of Reinforcement: A Theoretical Analysis (1969).
Source: Contingencies Of Reinforcement: A Theoretical Analysis

Source: Nationalism and Culture (1937), Ch. 1 "The Insufficiency of Economic Materialism"
Context: The view which sees in every capitalist only a profit machine may very well meet the demands of propaganda, but it is conceived much too narrowly and does not correspond to reality. Even in modern giant capitalism the power-political interests frequently play a larger part than the purely economic considerations, although it is difficult to separate them from each other... The morbid desire to make millions of men submissive to a definite will and to force whole empires into courses which are useful to the secret purposes of small minorities, is frequently more evident in the typical representatives of modern capitalism than are purely economic considerations or the prospect of greater material profit. The desire to heap up ever increasing profits today no longer satisfies the demands of the great capitalistic oligarchies. Every one of its members knows what enormous power the possession of great wealth places in the hands of the individual and the caste to which he belongs. This knowledge gives a tempting incentive and creates that typical consciousness of mastery whose consequences are frequently more destructive than the facts of monopoly itself.

Variant: What I write is different from what I say, what I say is different from what I think, what I think is different from what I ought to think and so it goes further into the deepest darkness.

“One does not like to differ from a man without knowing the reasons which influenced him.”
Ex parte Strawbridge; In re Hickman (1883), L. R. 25 C. D. 276.

i. 17, f. 18<sup>r</sup>
Commentarius in Posteriorum Analyticorum Libros (c. 1217-1220)