You easily lend bread to the one who has flour.
More French Proverbs:
Wash a dog, comb a dog, still a dog remains a dog.French
He who marries for love has good nights and bad days.
French
The handsomest woman can only give what she has.
French
It is the old cow's notion that she never was a calf.
French
Desperate maladies require desperate remedies.
French
The saint's-day over, farewell the saint.
French