Who draws his sword against his prince must throw away his scabbard.
More French Proverbs:
When the words are said, the holy water is made.French
A woman who dances too much gets ill from little work.
French
A mansion pulled down is half built up again.
French
Contrivance is better than force.
French
See a pin and let it lie, you'll want a pin before you die.
French
He that wants to keep his house clean must not let priest or pigeon into it.
French