Fools live to regret their words, wise men to regret their silence

Logical consequences are the scarecrows of fools and the beacons of wise men.

The world is like a brute beast, you teach it how it should behave towards you

Wise men don't need advice. Fools won't take it.

In Greece wise men speak and fools decide.

Rules are for the obedience of fools and the guidance of wise men.