He who controls the spice controls the universe.

One uses power by grasping it lightly. To grasp too strongly is to be taken over by power, and thus to become its victim.

We can say that Maud'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.

The difference between sentiment and being sentimental is the following: Sentiment is when a driver swerves out of the way to avoid hitting a rabbit on the road. Being sentimental is when the same driver, when swerving away from the rabbit, hits a pedestrian.

Most deadly errors arise from obsolete assumptions.

The highest function of ecology is the understanding of consequences.

Give as few orders as possible," his father had told him once long ago. "Once you've given orders on a subject, you must always give orders on that subject.