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

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

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

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

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

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

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

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

Even a paranoid can have enemies.

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

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.

Once suspicion is aroused, everything feeds it.