This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...s evil. And when a man has ascertained that one alternative is good and the other is evil, he has no justification for choosing a mixture. There can be no justification for choosing any part of that which one knows to be evil. In morality, “black” is predominantly the result of attempting to pretend to oneself that one is merely “gray.”

If a moral code (such as al
truism) is, in fact, impossible to practice, it is the code that must be condemned as “black,” not its victims evaluated as “gray.” If a moral code prescribes irreconcilable contradictio...
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