The meaning is best known to the speaker.
More French Proverbs:
Grass will not grow on a volcano.French
Too keen an edge does not cut, too fine a point does not pierce.
French
Flies will not light on a boiling pot.
French
A friend's meat is soon ready.
French
Beauty and folly are often companions.
French
Women, money, and wine have their balm and their harm.
French