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

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.

At Athens, wise men propose, and fools dispose.

Wise men speak because they have something to say; Fools because they have to say something.