This is a quote from the book "The Virtue Of Selfishness" by Ayn Rand
...rational desires. Morality is not a contest of whims. (See Mr. Branden’s articles “Counterfeit Individualism” and “Isn’t Everyone Selfish?” which follow.)
read full book
A similar typ
e of error is committed by the man who declares that since man must be guided by his own independent judgment, any action he chooses to take is moral if he chooses it. One’s own independent ju
dgment is the means by which one must choose one’s actions, but it is not a moral criterion nor a moral validation: only reference to a demonstrable principle can validate one’s choices.