So act that anything you do may become universal law.

The wish to talk to God is absurd. We cannot talk to one we cannot comprehend — and we cannot comprehend God; we can only believe in Him.

Nature even in chaos cannot proceed otherwise than regularly and according to order.

The universal and lasting establishment of peace constitutes not merely a part, but the whole final purpose and end of the science of right as viewed within the limits of reason.

All perception is colored by emotion.

Reason in a creature is a faculty of widening the rules and purposes of the use of all its powers far beyond natural instinct; it acknowledges no limits to its projects. Reason itself does not work instinctively, but requires trial, practice, and instruction in order gradually to progress from one level of insight to another.

In law a man is guilty when he violates the rights of others. In ethics he is guilty if he only thinks of doing so.