When a fool has the cow by the horns, the wise man can milk it.
More Jewish Proverbs:
Golden dishes will never turn black.Jewish
The only truly dead are those who have been forgotten.
Jewish
A hero is someone who can keep his mouth shut when he's right.
Jewish
A fool is his own informer.
Jewish
The schlemiel lands on his back and bruises his nose.
Jewish
A visit is like rainwater; you pray for it when it stays away and its a problem when it rains too much.
Jewish