Do not lend your money to a great man.
More French Proverbs:
An enemy does not sleep.French
See a pin and let it lie, you'll want a pin before you die.
French
All the treasures of the earth can't bring back one lost moment.
French
All cats are alike grey at night.
French
When the words are said, the holy water is made.
French
A good bone does not always come to a good dog.
French