This is a quote from the book "The Virtue Of Selfishness" by Ayn Rand
...ert man’s right to a moral existence — that is: to recognize his need of a moral code to guide the course and the fulfillment of his own life.
read full book
For a brief outline of the nature
and the validation of a rational morality, see my lecture on “The Objectivist Ethics” which follows. The reasons why man needs a moral code will tell you that the purpose of morality is to
define man’s proper values and interests, that concern with his own interests is the essence of a moral existence, and that man must be the beneficiary of his own moral actions.