This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...ts. He knows that the contradictory is the impossible, that a contradiction cannot be achieved in reality and that the attempt to achieve it can lead only to disaster and destruction. Therefore, he does not permit himself to hold contradictory values, to pursue contradictory goals, or to imagine that the pursuit of a contradiction can ever be to his interest.

Only an irra
tionalist (or mystic or subjectivist — in which category I place all those who regard faith, feelings or desires as man’s standard of value) exists in a perpetual conflict of “interests.�...
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