More quotes by Frank Herbert, Dune

"Whether a thought is spoken or not it is a real thing and it has power,"Tuek said. "You might find the line between life and death among the Fremen to be too sharp and quick."
"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."
"When religion and politics travel in the same cart, the riders believe nothing can stand in their way. Their movements become headlong - faster and faster and faster. They put aside all thoughts of obstacles and forget the precipice does not show itself to the man in a blind rush until it's too late."
"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."
"There is no escape—we pay for the violence of our ancestors."