"The small minority of men who are able to conceive of a new idea are the only men who discover truths. The rest are but the echoes of other men's thoughts."

"The man who speaks to you of duty, expects you to do his."

"The spread of evil is the symptom of a vacuum. Whenever evil wins, it is only by default: by the moral failure of those who evade the fight."

"Individualism is the only possible path to a sane, rational, moral world."

"Reason is man's only proper means of acquiring knowledge."