He who has a head of wax must not go near the fire.
More French Proverbs:
Some who mean only to warm, burn themselves.French
A girl unemployed is thinking of mischief.
French
There's no guarding against the privy thief.
French
A good thing can be twice, nay, even thrice spoken.
French
He who fondles you more than usual has either deceived you or wants to.
French
One foot is better then two stilts.
French