A wise man may learn of a fool.
More French Proverbs:
A man know's no more to any purpose than he practises.French
Reckless youth makes rueful age.
French
The fox thrives best when he is most cursed.
French
Nobility is nothing but ancient riches, and money is the world's idol.
French
Kindred without friends, friends without power, power without will, will without effect, effect without profit, profit without virtue, is not worth a rush.
French
If it only depends on swearing, the cow is ours.
French