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.

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

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

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.

Spies are of no use nowadays. Their profession is over. The newspapers do their work instead.

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

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

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.