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

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

Nothing is hidden from the eyes of the observing world.

Secrecy lies at the very core of power.

Once suspicion is aroused, everything feeds it.

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

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

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.

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