Nothing can corrupt and disintegrate a culture or a man’s character as thoroughly as does the precept of moral agnosticism, the idea that one must never pass moral judgment on others, that one must be morally tolerant of anything, that the good consists of never distinguishing good from evil.
It is obvious who profits and who loses by such a precept. It is not justice or equal treatment that you grant to men when you abstain equally from praising men’s virtues and from condemning men’s vices. When your impartial attitude declares, in effect, that neither the good nor the evil may expect anything from you—whom do you betray and whom do you encourage?
But to pronounce moral judgment is an enormous responsibility. 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 is, 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 bribes, nor allow any personal feeling, emotion, desire or fear to obstruct his mind’s judgment of the facts of reality—so every rational person must maintain an equally strict and solemn integrity in the courtroom within his own mind, where the responsibility is more awesome than in a public tribunal, because he, the judge, is the only one to know when he has been impeached.” – Ayn Rand “How Does One Lead a Rational Life in an Irrational Society?”