This is a quote from the book "The Virtue Of Selfishness" by Ayn Rand
...ffect, that neither the good nor the evil may expect anything from you — whom do you betray and whom do you encourage?
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But to pronounce moral judgment is an enormous responsibili
ty. To be a judge, one must possess an unimpeachable character; one need not be omniscient or infallible, and it is not an issue of errors of knowledge; one needs an unbreached integrity, that i
s, the absence of any indulgence in conscious, willful evil. Just as a judge in a court of law may err, when the evidence is inconclusive, but may not evade the evidence available, nor accept br...