A human being can stand any amount of pain.

Bureaucracy destroys initiative. There is little that bureaucrats hate more than innovation, especially innovation that produces better results than the old routines. Improvements always make those at the top of the heap look inept. Who enjoys appearing inept?

Think you of the fact that a deaf person cannot hear. Then, what deafness may we not all possess? What senses do we lack that we cannot see and cannot hear another world all around us?

Think on it, Chani: the princess will have the name, yet she'll live as less than a concubine - never to know a moment of tenderness from the man to whom she's bound. While we, Chani, we who carry the name of concubine - history will call us wives.

The young reed dies so easily. Beginnings are times of great peril.

The universe does not work by our rules

A leader is one of the things that distinguishes a mob from a people. He maintains the level of individuals. Too few individuals and a people reverts to a mob.