This is the fallacy of power: ultimately it is effective only in an absolute,
a limited universe. But the basic lesson of our relativistic universe is that
things change. Any power must always meet a greater power. Paul Muad'Dib taught
this lesson to the Sardaukar on the Plains of Arrakeen. His descendants have
yet to learn the lesson for themselves.

-- The Preacher at Arrakeen
--[children-of-dune]--