He who controls the spice controls the universe.

The basic lesson of our relativistic universe is that things change. Any power must always meet a greater power.

There is not secret to balance. You just have to feel the waves.

A good companion is one you wouldn't mind dying with.

Governments, if they endure, always tend increasingly toward aristocratic forms. No government in history has been known to evade this pattern. And as the aristocracy develops, government tends more and more to act exclusively in the interests of the ruling class -- whether that class be hereditary royalty, oligarchs of financial empires, or entrenched bureaucracy.

Seek freedom and become captive of your desires. Seek discipline and find your liberty.

Every civilization depends on the quality of the individuals it produces. If you over-organize humans, over-legalize them, suppress their urge to greatness-they cannot work and their civilization collapses.