Rely Only On Yourself; It Is A

A Hare Is Not Caught With A Drum.

The Best Laid Plot Can Injure Its Maker, And Often A Man's Perfidy Will Rebound On Himself.

But A Rascal Of A Child (that Age Is Without Pity). [fr., Mais Un Pripon D'enfant (cet Age Est Sans Pitie).

It Is Double Pleasure To Deceive The Deceiver. [fr., Car C'est Double Plaisir De Tromper Le Trompeur.]

Sensible People Find Nothing Useless.