Secrecy lies at the very core of power.

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

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

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

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

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

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

Nothing is hidden from the eyes of the observing world.

Even a paranoid can have enemies.