The essence of man is imperfection.

The main trouble with despair is that it is self-fulfilling. People who fear the worst tend to invite it. Heads that are down can't scan the horizon for new openings. Bursts of energy do not spring from a spirit of defeat. Ultimately, helplessness leads to hopelessness.

Man is not imprisoned by habit. Great changes in him can be wrought by crisis - once that crisis can be recognized and understood.

Your heaviest artillery will be your will to live. Keep that big gun going.

A human being fashions his consequences as surely as he fashions his goods or his dwelling. Nothing that he says, thinks or does is without consequences.

We have learned to live in a world of mistakes and defective products as if they were necessary to life. It is time to adopt a new philosophy in America.

Unobstructed access to facts can produce unlimited good only if it is matched by the desire and ability to find out what they mean and where they lead.