"Come, come," the Baron said. "We don't have much time and pain is quick. Please don't bring it to this, my dear Duke." The Baron looked up at Piter … - Frank Herbert

She is the virgin-harlot,” Bijaz said. “She is vulgar, witty, knowledgeable to a depth that terrifies, cruel when she is most kind, unthinking while she thinks, and when she seeks to build she is as destructive as a coriolis storm.

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!

The limit of the law is the limit of enforcement — the real limit of organized society.