Some sell and don’t deliver.
More French Proverbs:
The maxims of men disclose their hearts.French
When a cow is lost it is something to recover its tail, were it only to make a handle for one's door.
French
It is the tone that makes the music.
French
Try to reason about love, and you will lose your reason.
French
The sheep on the mountain is higher than the bull on the plain.
French
When the dog is drowning every one brings him water.
French