This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...t make his action selfish or establish objectively that he is its beneficiary.

Suppose, for example, that a son chooses the career he wants by rational standards, but then renounce
s it in order to please his mother who prefers that he pursue a different career, one that will have more prestige in the eyes of the neighbors. The boy accedes to his mother’s wish because he has accepted that such is his moral duty: he believes that his duty as a son consists of placing his mother’s happiness above his own, even if he knows that his mother’s demand is irrationa...
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