This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...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.� � Not only do his alleged interests clash with those of other men, but they clash also with one another.

No one finds it difficult to dismiss from philosophical consideration the p
roblem of a man who wails that life entraps him in an irreconcilable conflict because he cannot eat his cake and have it, too. That problem does not acquire intellectual validity by being expand...
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