Children and fools cannot lie. 

If you steal, do not steal too much at a time. You may be arrested. Steal cleverly, little by little.

He that will cheat you at play, will cheat you any way.

If you find excrement somewhere in the village, the chief was the one who put it there.

There was no treachery too base for the world to commit.

The poor man is ruined as soon as he begins to ape the rich.

Men were born to lie, and women to believe them.

Honesty, for me, is usually the worst policy imaginable.

Someone who knows too much finds it hard not to lie.

Alongside all swindlers the state now stands there as swindler-in-chief.

We have to distrust each other. It is our only defense against betrayal.

Credulity forges more miracles than trickery could invent.

Grow your tree of falsehood from a small grain of truth.