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

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

Secrecy lies at the very core of power.

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

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

The first duty of a good inquisitor is to suspect especially those who seem sincere to him.

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.

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.

There is nothing more deceptive than an obvious fact.

Nothing is hidden from the eyes of the observing world.

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