Secrecy lies at the very core of power.

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

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.

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

Secrets define us, they mark us, they set us apart from all the others. The secrets which we preserve provide a key to who we are, deep down.

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

A regime which combines perpetual surveillance with total indulgence is hardly conducive to healthy development.

The life of spies is to know, not be known.

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

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

We must not always talk in the marketplace of what happens to us in the forest.

Once suspicion is aroused, everything feeds it.

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