“Since knowledge, thinking, and rational action are properties of the individual, since the choice to exercise his rational faculty or not depends on the individual, man’s survival requires that those who think be free of the interference of those who don’t. Since men are neither omniscient nor infallible, they must be free to agree or disagree, to cooperate or to pursue their own independent course, each according to his own rational judgment. Freedom is the fundamental requirement of man’s mind.A rational mind does not work under compulsion; it does not subordinate its grasp of reality to anyone’s orders, directives, or controls; it does not sacrifice its knowledge, its view of the truth, to anyone’s opinions, threats, wishes, plans, or “welfare.” Such a mind may be hampered by others, it may be silenced, proscribed, imprisoned, or destroyed; it cannot be forced; a gun is not an argument. (An example and symbol of this attitude is Galileo.)It is from the work and the inviolate integrity of such minds—from the intransigent innovators—that all of mankind’s knowledge and achievements have come. (See The Fountainhead.) It is to such minds that mankind owes its survival. (See Atlas Shrugged.)”

“Happiness is not to be achieved at the command of emotional whims. Happiness is not the satisfaction of whatever irrational wishes you might blindly attempt to indulge. Happiness is a state of non-contradictory joy—a joy without penalty or guilt, a joy that does not clash with any of your values and does not work for your own destruction, not the joy of escaping from your mind, but of using your mind's fullest power, not the joy of faking reality, but of achieving values that are real, not the joy of a drunkard, but of a producer. Happiness is possible only to a rational man, the man who desires nothing but rational goals, seeks nothing but rational values and finds his joy in nothing but rational actions.”

“Fanaticism is the opposite of love,’ I said, recalling one of Khaderbhai’s lectures. A wise man once told me—he’s a Muslim, by the way—that he has more in common with a rational, reasonable-minded Jew than he does with a fanatic from his own religion. He has more in common with a rational, reasonable-minded Christian or Buddhist or Hindu than he does with a fanatic from his own religion. In fact, he has more in common with a rational, reasonable-minded atheist than he does with a fanatic from his own religion. I agree with him, and I feel the same way. I also agree with Winston Churchill, who once defined a fanatic as someone who won’t change his mind and can’t change the subject.”

“No rational argument will have a rational effect on a man who does not want to adopt a rational attitude.”

“Paranoia is transmissible from mind to mind, but it does not go by the route of reason. It can therefore change its rationalization while remaining essentially the same.”

“There must be only three supreme values which govern a person's life: Reason, Purpose, and 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.”