When a man really tells the truth, the first truth he tells is that he himself is a liar.

Man is not what he thinks he is, he is what he hides.

"A man may say, "From now on I'm going to speak the truth." But the truth hears him and runs away and hides before he's even done speaking."

In silence alone does a man's truth bind itself together and strike root.

You tell a man the truth about himself and, well, they find they have trouble accepting it.

It is the man who all his life has been self-convicted of veracity whose lies find quickest credence.

Every man has some reminiscences which he would not tell to everyone, but only to his friends. He has others which he would not reveal even to his friends, but only to himself, and that in secret. But finally there are still others which a man is even afraid to tell himself, and every decent man has a considerable number of such things stored away. That is, one can even say that the more decent he is, the greater the number of such things in his mind.

A man is literally what he thinks.

It is hard to believe that a man is telling the truth when you know that you would lie if you were in his place.

Man prefers to believe what he prefers to be true.

There's one way to find out if a man is honest: ask him; if he says yes, you know he's crooked.

Il ne faut pas s’offenser que les autres nous cachent la vérité, puisque nous nous la cachons si souvent à nous-mêmes

The man who boasts that he habitually tells the truth is simply a man with no respect for it. It is not a thing to be thrown about loosely, like small change; it is something to be cherished and hoarded, and disbursed only when absolutely necessary.

Pour examiner la vérité, il est besoin, une fois dans sa vie, de mettre toutes choses en doute autant qu’il se peut.