Every fool believes what his teachers tell him, and calls his credulity science or morality as confidently as his father called it divine revelation.

Better a witty fool, than a foolish wit.

It is better to remain silent and be thought a fool, than to open your mouth and remove all doubts.

Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction.

A fool and his money are soon invited everywhere.

Somebody does somethin' stupid, that's human. They don't stop when they see it's wrong, that's a fool.