One deceit brings on another.
More French Proverbs:
The doctor is often more to be feared than the disease.French
Spit not in the well, you may have to drink its water.
French
He is a great fool who forgets himself.
French
The most lasting monuments are doubtless paper-monuments.
French
He who leaves the game, loses.
French
In the end it will be known who ate the bacon.
French