This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...,” in this context, means “good and evil.” (The reverse order used in that catch phrase is interesting psychologically.)

In any respect one cares to examine, that notion is f
ull of contradictions (foremost among them is the fallacy of “the stolen concept”). If there is no black and white, there can be no gray — since gray is merely a mixture of the two.

Before one can identify anything as “gray,” one has to know what is black and what is white. In the field of morality, this means that one must first identify what is good and what i...
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