This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand

It is only the legacy of mysticism that permits men to imagine that they are still speaking meaningfully when they declare that one can seek one’s happiness in the renunci
ation of one’s happiness.

The basic fallacy in the “everyone is selfish” argument consists of an extraordinarily crude equivocation. It is a psychological truism — a tautol
ogy — that all purposeful behavior is motivated. But to equate “ motivated behavior” with “ selfish behavior” is to blank out the distinction between an elementary fact of human psycho...
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