He flattered himself on being a man without any prejudices; and this pretension itself is a very great prejudice.

Do not try to satisfy your vanity by teaching a great many things. Awaken people's curiosity. It is enough to open minds; do not overload them. Put there just a spark. If there is some good inflammable stuff, it will catch fire.

A dictionary is merely the universe arranged in alphabetical order.

People who have no weaknesses are terrible; there is no way of taking advantage of them.

There are no bad books any more than there are ugly women.

It is the certainty that they possess the truth that makes men cruel.

You think you are dying for your country; you die for the industrialists.