This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...ds human lives as interchangeable with his own. He recognizes the fact that his own life is the source , not only of all his values, but of his capacity to value. Therefore, the value he grants to others is only a consequence, an extension, a secondary projection of the primary value which is himself.

“The respect and good will that men of self-esteem feel toward other
human beings is profoundly egoistic; they feel, in effect: ‘Other men are of value because they are of the same species as myself.’ In revering living entities, they are revering their own l...
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