This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...problem by consigning all men to moral “grayness” and thus refusing to recognize or to practice “whiteness.” Nor does it serve as an escape from the responsibility of moral judgment: unl ess one is prepared to dispense with morality altogether and to regard a petty chiseller and a murderer as morally equal, one still has to judge and evaluate the many shadings of “gray” that 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...
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