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.

Faith and force ... are corollaries: every period of history dominated by mysticism, was a period of statism, of dictatorship, of tyranny.

As long as men are free to speak, a small, rational minority will always prevail over an irrational majority.

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.

The man who produces while others dispose of his product is a slave.

All the reasons which made the initiation of physical force evil, make the retaliatory use of physical force a moral imperative.

Ordinary human concern for human distress does not manifest itself ordinarily in the form of a gun aimed at the wallets and earnings of one's neighbors.