Morality is a code of black and white. When and if men attempt a compromise, it is obvious which side will necessarily lose and which will necessarily profit.

A reader has to be concerned only with the end result; unless he chooses to analyze it, he does not have to know by what means that result was achieved-but it is my job to know.

What objectivity and the study of philosophy requires is not an 'open mind,' but an active mind - a mind able and eagerly willing to examine ideas, but to examine them criticially.

Kant is the most evil man in mankind's history.

He had a big head and a face so ugly it became almost fascinating.

Live and act within the limit of your knowledge and keep expanding it to the limit of your life. Redeem your mind from the hockshops of authority. Accept the fact that you are not omniscient, but playing a zombie will not give you omniscience-that your mind is fallible, but becoming mindless will not make you infallible-that an error made on your own is safer than ten truths accepted on faith, because the first leaves you the means to correct it, but the second destroys your capacity to distinguish truth from error.

Happiness is a state of non-contradictory joy--a joy without penalty or guilt, a joy that does not clash with any of your values and does not work for your own destruction, not the joy of escaping from your mind, but of using your mind's fullest power, not the joy of faking reality, but of achieving values that are real, not the joy of a drunkard, but of a producer.