Sweep aside those parasites of subsidized classrooms, who live on the profits of the mind of others and proclaim that man needs no morality, no values, no code of behavior. They, who pose as scientists and claim that man is only an animal, do not grant him inclusion in the law of existence they have granted to the lowest of insects. They recognize that every living species has a way of survival demanded by its nature, they do not claim that a fish can live out of water or that a dog can live without its sense of smell—but man, they claim, the most complex of beings, man can survive in any way whatever, man has no identity, no nature, and there’s no practical reason why he cannot live with his means of survival destroyed, with his mind throttled and placed at the disposal of any orders they might care to issue.

Sweep aside those hatred-eaten mystics, who pose as friends of humanity and preach that the highest virtue man can practice is to hold his own life as of no value. Do they tell you that the purpose of morality is to curb man’s instinct of self-preservation? It is for the purpose of self-preservation that man needs a code of morality. The only man who desires to be moral is the man who desires to live.

If I were to speak your kind of language, I would say that man’s only moral commandment is: Thou shalt think. But a “moral commandment” is a contradiction in terms. The moral is the chosen, not the forced; the understood, not the obeyed. The moral is the rational, and reason accepts no commandments.

My morality, the morality of reason, is contained in a single axiom: existence exists—and in a single choice: to live. The rest proceeds from these. To live, man must hold three things as the supreme and ruling values of his life: Reason—Purpose—Self-esteem. Reason, as his only tool of knowledge—Purpose, as his choice of the happiness which that tool must proceed to achieve—Self-esteem, as his inviolate certainty that his mind is competent to think and his person is worthy of happiness, which means: is worthy of living. These three values imply and require all of man’s virtues, and all his virtues pertain to the relation of existence and consciousness: rationality, independence, integrity, honesty, justice, productiveness, pride.

Ayn Rand, For the New Intellectual