“Every man builds his world in his own image; he has the power to choose, but no power to escape the necessity of choice. If he abdicates his power, he abdicates the status of man, and the grinding chaos of the irrational is what he achieves as his sphere of existence—by his own choice.”

“Man has the power to act as his own destroyer and that is he has acted through most of history.”

“By the grace of reality and the nature of life, man–every man–is an end in himself, he exists for his own sake, and the achievement of his own happiness is his highest moral purpose”

“Man is the only living species that has the power to act as his own destroyer - and that is the way he has acted through most of his history.”

“In order to live, man must act; in order to act, he must make choices; in order to make choices, he must define a code of values; in order to define a code of values, he must know what he is and where he is – i.e. he must know his own nature (including his means of knowledge) and the nature of the universe in which he acts – i.e. he needs metaphysics, epistemology, ethics, which means: philosophy. He cannot escape from this need; his only alternative is whether the philosophy guiding him is to be chosen by his mind or by chance.”

“Man—every man—is an end in himself, not a means to the ends of others; he must live for his own sake, neither sacrificing himself to others nor sacrificing others to himself; he must work for his rational self-interest, with the achievement of his own happiness as the highest moral purpose of his life.”

“Man has no automatic code of survival. His particular distinction from all other living species is the necessity to act in the face of alternatives by means of volitional choice. He has no automatic knowledge of what is good for him or evil, what values his life depends on, what course of action it requires. Are you prattling about an instinct of self-preservation? An instinct of self-preservation is precisely what man does not possess. An 'instinct' in as unerring and automatic form of knowledge. A desire is not an instinct. A desire to live does not give you the knowledge required for living. And even man's desire to live is not automatic: your secret evil today is that that is the desire you do not hold. Your fear of death is not a love of life and will not give you the knowledge needed to keep it. Man must obtain his knowledge and choose his actions by a process of thinking, which nature will not force him to perform. Man has the power to act as his own destroyer--and that is the way he has acted through most of history.”