To believe all men honest is folly. To believe none is something worse.

All men profess honesty as long as they can. To believe all men honest would be folly. To believe none so is something worse.

For all Men would be Cowards if they durst: And Honesty's against all common Sense.

There is no safety for honest men except by believing all possible evil of evil men.

In fact, I do not believe there is an honest man alive without some pretension,

A man who trusts everyone is a fool, and a man who trusts no one is a fool. We are all fools, if we live long enough.

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.

Not believing others implies that you yourself are deceitful. The liar suffers twice: he neither believes nor is believed.

To expect that men who do not honorably and intelligently conduct their private affairs will honorably and intelligently conduct the affairs of the community is to be a fool.

What a fool honesty is.

Confidence in others' honesty is no light testimony of one's own integrity.

All men are frauds. The only difference between them is that some admit it. I myself deny it.

There is no safety for honest men, but by believing all possible evil of evil men, and by acting with promptitude, decision, and steadiness on that belief.

It is the thoughts of men that are deceitful, Their pledges that are loose.