“Abandon certainty! That's life's deepest command. That's what life's all about. We're a probe into the unknown, into the uncertain. Why can't you hear Muad'Dib? If certainty is knowing absolutely an absolute future, then that's only death disguised! Such a future becomes now!”

“[For people] to refuse a hearing to an opinion, because they are sure that it is false, is to assume that their certainty is the same thing as absolute certainty. All silencing of discussion is an assumption of infallibility.”

“You can't know now what the results will be in the future. So for now, don't even think about it. Think about what you want to do and what you can do. That's very different from 'running away'. What do you want to do?”

“Sometimes we have the absolute certainty there's something inside us that's so hideous and monstrous that if we ever search it out we won't be able to stand looking at it. But it's when we're willing to come face to face with that demon that we face the angel.”

“You absolutely don't know what's going to happen next - that's surrender.”

“You tasted it. Isn't that enough? Of what do you ever get more than a taste? That's all we're given in life, that's all we're given of life. A taste. There is no more.”