This is a quote from the book "The Virtue Of Selfishness" by Ayn Rand
... validated by the fundamental premises of a moral system.
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The Objectivist ethics holds that the actor must always be the beneficiary of his action and that man must act for his own
rational self-interest. But his right to do so is derived from his nature as man and from the function of moral values in human life — and, therefore, is applicable only in the context of a r
ational, objectively demonstrated and validated code of moral principles which define and determine his actual self-interest. It is not a license “to do as he pleases” and it is not applicab...