Even the best mule still saves a kick for his master.
More French Proverbs:
Don't teach fishes to swim.French
You cannot satisfy the whole world and your father.
French
Gossipers are the devil's trumpeters.
French
Who is known as an early riser may sleep longer.
French
Take away fuel, take away flame.
French
He who rides on the giant's shoulders sees further than he who carries him.
French