Prisons are needed only to provide the illusion that courts and police are effective. They're a kind of job insurance.

He who controls the spice controls the universe.

Confine yourself to observing and you always miss the point of your life. The object can be stated this way: Live the best life you can. Life is a game whose rules you learn if you leap into it and play it to the hilt. Otherwise, you are caught off balance, continually surprised by the shifting play. Non-players often whine and complain that luck always passes them by. They refuse to see that they can create some of their own luck. Darwi Odrade - Chapterhouse: Dune

A human being can stand any amount of pain.

This wise man observed that wealth is a tool of freedom. But the pursuit of wealth is the way to slavery.

The successful writer listens to himself.

When strangers meet, great allowance should be made for differences of custom and training.