After the Fremen, all Planetologists see life as expressions of energy and look for the overriding relationships. In small pieces, bits and parcels which grow into general understanding, the Fremen racial wisdom is translated into a new certainty. The thing Fremen have as a people, any people can have. They need but develop a sense for energy relationships. They need but observe that energy soaks up the patterns of things and builds with those patterns.
Attributed to: Harq al-Ada
From Chapter 56 of Children of Dune by Herbert, Frank