Freedom is an elusive concept. Some men hold themselves prisoner even when they have the power to do as they please and go where they choose, while others are free in their hearts, even as shackles restrain them.

Any school for free citizens must begin by teaching distrust, not trust. It must teach questioning, not acceptance of stock answers.

Anything imagined can be made real ... given sufficient genius.

Simplicity is the most difficult of all concepts.

It is astonishing how foolish humans can be in groups, especially when they follow their leader without question.

There is no man so blind as one who has made up his mind.

Fear invites aggression - do not show it to a predator.