Leave well alone.
More French Proverbs:
War is much too serious a matter to be entrusted to the military.French
Will is power.
French
Don't make an oven of your cap or a garden of your belly.
French
The most lasting monuments are doubtless paper-monuments.
French
Speak little and well if you wish to be esteemed a person of merit.
French
Glutton: one who digs his grave with his teeth.
French