Never argue with a fool, onlookers may not be able to tell the difference.

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

A fool and his money are soon invited everywhere.

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

The tongue of a fool is the key of his counsel, which, in a wise man, wisdom hath in keeping.

I am a fool, but I know I'm a fool and that makes me smarter than you.