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.

In all proper relationships there is no sacrifice of anyone to anyone. An architect needs clients, but he does not subordinate his work to their wishes. They need him, but they do not order a house just to give him commission. Men exchange their work by free, mutual consent to mutual advantage when their personal interests agree and they both desire the exchange.

To interpose the threat of physical destruction between a man and his perception of reality, is to negate and paralyze his means of survival to force him to act against his own judgment, is like forcing him to act against his own sight

Man's basic vice, the source of all his evils, is the act of unfocusing his mind, the suspension of his consciousness, which is not blindness, but the refusal to see, not ignorance, but the refusal to know.

No speech is ever considered, but only the speaker. It's so much easier to pass judgement on a man than on an idea.

If, before undertaking some action, you must obtain the permission of society-you are not free, whether such permission is granted to you or not. Only a slave acts on permission. A permission is not a right.

Every honest man lives for himself. Every man worth calling a man lives for himself. The one who doesn't - doesn't live at all.