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

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

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.

There is a sickness among tyrants: they cannot trust their friends.

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

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

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

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

There is nothing more deceptive than an obvious fact.

Secrecy lies at the very core of power.

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

Nothing is hidden from the eyes of the observing world.

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