“Empires do not suffer emptiness of purpose at the time of their creation. It is when they have become established that aims are lost and replaced by vague ritual. -Words of Muad'dib by Princess Irulan.”
“The purpose of education is to replace an empty mind with an open one.”
“Travel's greatest purpose is to replace an empty mind with an open one.”
“When causes are vague and goals uncertain... it becomes necessary to fall back on the bloated and honeyed words of propaganda.”
“Arrakis teaches the attitude of the knife - chopping off what's incomplete and saying: 'Now, it's complete because it's ended here.'- from "Collected Sayings of Maud'Dib'' by the Princess Irulan”
“the strange thing is that when a word is well established as a swear word, it seems to lose its original meaning; that is, it loses the thing that made it into a swear word. A word becomes an oath because it means a certain thing, and, because it has become an oath, it ceases to mean that thing.”