For sites about Alfred Jules Ayer (1910-1989), the philosopher who established the central doctrines of English logical positivism.
"There never comes a point where a theory can be said to be true. The most that one can claim for any theory is that it has shared the successes of all its rivals and that it has passed at least one test which they have failed."

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A. J. Ayer to Harrod, 2 December 1933
Text of two letters in which Ayer lays out his thoughts on verification.

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[Mozilla Letter A]
Last update:
August 21, 2015 at 6:15:06 UTC
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