Three may keep a secret, if two of them are dead.

There is nothing makes a man suspect much, more than to know little.

If the world were good for nothing else, it is a fine subject for speculation.

For sooner will men hold fire in their mouths than keep a secret.

To know all is not to forgive all. It is to despise everybody.

Secrets are rarely betrayed or discovered according to any program our fear has sketched out.

I will never again command an army in America if we must carry along paid spies. I will banish myself to some foreign country first.

If you read somebody’s diary, you get what you deserve.

There is nothing more deceptive than an obvious fact.