Any man who retreats into a cave which has only one opening deserves to die.

Constitutions become the ultimate tyranny," Paul said. "They’re organized power on such a scale as to be overwhelming. The constitution is social power mobilized and it has no conscience. It can crush the highest and the lowest, removing all dignity and individuality. It has an unstable balance point and no limitations.

They say they seek security and quiet, the condition they call peace. Even as they speak they create the seeds of turmoil and violence.

A voice hissed: "He sheds tears!" It was taken around the ring "Usal gives moisture to the dead!" He felt fingers touch his damp cheek, heard the awed whispers.

Arrakis teaches the attitude of the knife - chopping off what's incomplete and saying: "Now it's complete because it's ended here."

Most civilisation is based on cowardice. It's so easy to civilize by teaching cowardice. You water down the standards which would lead to bravery. You restrain the will. You regulate the appetites. You fence in the horizons. You make a law for every movement. You deny the existence of chaos. You teach even the children to breathe slowly. You tame.

Absolute power does not corrupt absolutely, absolute power attracts the corruptible.