A liar will not be believed, even when he speaks the truth.

The poet is a liar who always speaks the truth.

The liar's punishment is not in the least that he is not believed, but that he cannot believe anyone else.

Every truth has two sides; it is as well to look at both, before we commit ourselves to either

He that is discontented in one place will seldom be happy in another.

One lie can tarnish a thousand truths.