A fool’s tongue is long enough to cut his own throat.
More French Proverbs:
After one loss come many.French
Were the devil to come from hell to fight, there would forthwith be a Frenchman to accept the challenge.
French
The biter is often bit.
French
The mule long keeps a kick in reserve for its master.
French
Stolen waters are sweet.
French
There is no chapel so small but has its saint.
French