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.

Secrecy lies at the very core of power.

It was funny how I could feel all alone and under surveillance at the same time.

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

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

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

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

Guard more faithfully the secret which is confided to you than the money which is entrusted to your care.

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