He that that hath a head of wax must not approach the fire.
More French Proverbs:
He that is too secure is not safe.French
For most people love of justice is no more than the fear to suffer injustice.
French
Every mother-in-law is a piece of the devil's pants.
French
To wash an ass's head is but loss of time and soap. (To reprove a fool is but lost labour.)
French
The word of a woman is as a little feather on the water.
French
It is better to leave the child's nose dirty than wring it off.
French