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.

We faced it and did not resist. The storm passed through us and around us. It's gone, but we remain.

Sympathy for the enemy -- a weakness of police and armies alike. Most perilous are the unconscious sympathies directing you to preserve your enemy intact because the enemy is your justification for existence.

To suspect your own mortality is to know the beginning of terror, to learn irrefutably that you are mortal is to know the end of terror.

There is no real ending. It’s just the place where you stop the story.

The universe does not work by our rules

Bureaucracy destroys initiative. There is little that bureaucrats hate more than innovation, especially innovation that produces better results than the old routines. Improvements always make those at the top of the heap look inept. Who enjoys appearing inept?