There is only one source of authentic self-confidence: reason.

Did it ever occur to you, that there is no conflict of interests among men, neither in business nor in trade nor in their most personal desires - if they omit the irrational from their view of the possible and destruction from their view of the practical?

We can evade reality, but we cannot evade the consequences of evading reality

This was the great clarity of being beyond emotion, after the reward of having felt everything one could feel.

To be the kind of writer you want to be, you must first be the kind of thinker you want to be.

It is the basic, metaphysical fact of man's nature -- the connection between his survival and his use of reason -- that capitalism recognizes and protects.

That which you call your soul or spirit is your consciousness, and that which you call 'free will' is your mind's freedom to think or not, the only will you have, your only freedom, the choice that controls all the choices you make and determines your life and your character.