Arrakis teaches the attitude of the knife - chopping off what's incomplete and saying: 'Now, it's complete because it's ended here.'

- from "Collected Sayings of Maud'Dib'' by the Princess Irulan

Hope clouds observation.

The mystery of life isn't a problem to solve, but a reality to experience.

You never talk of likelihoods on Arrakis. You speak only of possibilities.

the most precious substance in the universe is the spice Melange…The spice extends life… expands consciousness… gives them the ability to fold space…that is, travel to any part of the universe without moving.

These are illusions of popular history which successful religion must promote: Evil men never prosper; only the brave deserve the fair; honesty is the best policy; actions speak louder than words; virtue always triumpths; a good deed is its own rewards; any bad human can be reformed; religious talismans protect one from demon possession; only females understand the ancient mysteries; the rich are doomed to unhappiness