This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
... one may encounter in the characters of individual men. (And the only way to judge them is by a clearly defined criterion of “black” and “white.”)

A similar notion, involvi
ng similar errors, is held by some people who believe that the doctrine of moral grayness is merely a restatement of the proposition: “There are two sides to every issue,” which they take to mean that nobody is ever fully right or fully wrong. But that is not what that proposition means or implies. It implies only that in judging an issue, one should take cognizance of or give a he...
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