Man's unique reward, however, is that while animals survive by adjusting themselves to their background, man survives by adjusting his background to himself.

I swear, by my life and my love of it, that I will never live for the sake of another man, nor ask another man to live for mine.

There's nothing of any importance in life-except how well you do your work.

Do not make the mistake...of thinking that a worker is a slave and that he holds his job by his employer's permission. He does not hold it by permission - but by contract, that is, by a voluntary mutual agreement. A worker can quit his job; a slave cannot.

Ideas are the greatest and most crucially practical power on earth.

Achievement of your happiness is the only moral purpose of your life, and that happiness, not pain or mindless self-indulgence, is the proof of your moral integrity, since it is the proof and the result of your loyalty to the achievement of your values.

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.