Religion must remain an outlet for people who say to themselves, "I am not the kind of person I want to be." It must never sink into an assemblage of the self-satisfied.

The person who takes the banal and ordinary and illuminates it in a new way can terrify. We do not want our ideas changed.

Leto turned a hard stare at Kynes. And Kynes, returning the stare, found himself troubled by a fact he had observed here: This Duke was concerned more over the men than he was over the spice. He risked his own life, and that of his son to save the men. He passed off the loss of a spice crawler with a gesture. The threat to men's lives had him in a rage. A leader such as that would command fanatic loyalty. He would be difficult to defeat. Against his own will and all previous judgements, Kynes admitted to himself: I like this Duke.

Control the coinage and the courts — let the rabble have the rest.

Many have marked the speed with which Muad'Dib learned the necessities of Arrakis. The Bene Gesserit, of course, know the basis of this speed. For the others, we can say that Muad'Dib learned rapidly because his first training was in how to learn. And the first lesson of all was the basic trust that he could learn. It is shocking to find how many people do not believe they can learn, and how many more believe learning to be difficult. Muad'Dib knew that every experience carries its lesson.

I give you the chameleon, whose ability to blend itself into the background tells you all you need to know about the roots of ecology and the foundations of a personal identity

All men seek to be enlightened. Religion is but the most ancient and honorable way in which men have striven to make sense out of God's universe. Scientists seek the lawfulness of events. It is the task of Religion to fit man into this lawfulness.