An ass does not stumble twice over the same stone.
More French Proverbs:
It won't do to trifle with fire.French
A good repast ought to begin with hunger.
French
So long as the wolf is captured the dog will bite his leg.
French
If the young only knew; if the old only could.
French
Who has not, cannot.
French
A wise man may learn of a fool.
French