All friendly feelings toward others come from the friendly feelings a person has for himself.

For what one has to learn to do, we learn by doing.

There is no genius who hasn't a touch of insanity.

Even when laws have been written down, they ought not always to remain unaltered. As in other sciences, so in politics, it is impossible that all things should be precisely set down in writing; for enactments must be universal, but actions are concerned with particulars. Hence we infer that sometimes and in certain cases laws may be changed.

Men create gods after their own image, not only with regard to their form but with regard to their mode of life.

So virtue is a purposive disposition, lying in a mean that is relative to us and determined by a rational principle, and by that which a prudent man would use to determine it. It is a mean between two kinds of vice, one of excess and the other of deficiency.

To write well, express yourself like the common people, but think like a wise man.