Civilization is the progress toward a society of privacy. The savage's whole existence is public, ruled by the laws of his tribe. Civilization is the process of setting man free from men.

One's own independent judgment is the means by which one must choose one's actions, but it is not a moral criterion nor a moral validation; only reference to a demonstrable principle can validate one's choices.

Through all the centuries of the worship of the mindless, whatever stagnation humanity chose to endure, whatever brutality to practice-it was only by the grace of the men who perceived that wheat must have water in order to grow, that stones laid in a curve will form an arch, that two and two make four, that love is not served by torture and life is not fed by destruction-only by the grace of those men did the rest of them learn to experience moments when they caught the spark of being human.

This is the age othe common man, they tell us-a title which any man may claim to the extent osuch distinction as he has managed not to achieve.

As we gain knowledge, we do not become more certain, we become certain of more.

Productiveness is your acceptance of morality, your recognition of the fact that you choose to live.

Rationality is the recognition of the fact that nothing can alter the truth and nothing can take precedence over that act of perceiving it.