Forewarned is forearmed.
More French Proverbs:
A bellyful is a bellyful.French
Lazy people are always eager to be doing something.
French
Some sell and don't deliver.
French
Hunger looks in at the industrious man's door but dares not enter.
French
Saying well causes a laugh; doing well produces silence.
French
When the kitchenmaids are together the roast burns.
French