Truth will not make us rich, but it will make us free.

There is no real philosophy until the mind turns around and examines itself.

There is hardly an absurdity of the past that cannot be found flourishing somewhere in the present.

There is no significant example in history, before our time, of a society successfully maintaining moral life without the aid of religion.

Rome remained great as long as she had enemies who forced her to unity, vision, and heroism. When she had overcome them all she flourished for a moment and then began to die.

Nothing is new except arrangement.

The crossroads of trade are the meeting place of ideas, the attrition ground of rival customs and beliefs; diversities beget conflict, comparison, thought; superstitions cancel one another, and reason begins.