Then, as his planet killed him, it occurred to Kynes that his father and all the other scientists were wrong, that the most persistent principles of the universe were accident and error.

I must not fear. Fear is the mind-killer. Fear is the little-death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me. And when it has gone past I will turn the inner eye to see its path. Where the fear has gone there will be nothing. Only I will remain.

If you rely only on your eyes, your other senses weaken.

Blood is thicker than water, but politics are thicker than blood.

I never thought it would be easy to serve God," she said. "I just didn't think it would be this hard.

Jessica stopped beside him, said: 'What delicious abandon in the sleep of a child.' He spoke mechanically: 'If only adults could relax like that.' 'Yes.' 'Where do we lose it?' he murmured. 'We do, indeed, lose something,' she said.

When I was writing Dune there was no room in my mind for concerns about the book's success or failure. I was concerned only with the writing. Six years of research had preceded the day I sat down to put the story together, and the interweaving of the many plot layers I had planned required a degree of concentration I had never before experienced.