Your emotional capacity is an empty motor, and your values are the fuel with which your mind fills it. If you choose a mix of contradictions, it will clog your motor, corrode your transmission and wreck you on your first attempt to move with a machine which you, the driver, have corrupted.

My greatest personal mistake is ever to allow a word or moment that “doesn’t count,” i.e., that I do not refer to my own basic principles. Every word, every action, every moment counts. (This is the pattern on which everybody makes mistakes [or] becomes irrational — not relating their one action or one conviction to another.

What I am fighting is the idea that charity is a moral duty and a primary virtue.

Let no man posture as an advocate of peace if he proposes or supports any social system that initiates the use of force against individual men, in any form.

One must never fail to pronounce moral judgment.

Love is an expression and assertion of self-esteem, a response to one's own values in the person of another. One gains a profoundly personal, selfish joy from the mere existence of the person one loves. It is one's own personal, selfish happiness that one seeks, earns, and derives from love.

Science was born as a result and consequence of philosophy; it cannot survive without a philosophical base. If philosophy perishes, science will be next to go.