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

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.

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

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

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

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

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

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

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

Once suspicion is aroused, everything feeds it.

Even a paranoid can have enemies.

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

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