“Every judgment teeters on the brink of error,” Leto explained. “To claim absolute knowledge is to become monstrous. Knowledge is an unending adventure at the edge of uncertainty.”

“A sophisticated human can become primitive. What this really means is that the human's way of life changes. Old values change, become linked to the landscape with it's plants and animals. This new existence requires a working knowledge of those multiplex and cross-linked events usually referred to as Nature. It requires a measure of respect for the inertial power within such natural systems. When a human gains this knowledge and respect, that is called "being primitive". The converse, of course, is equally true: the primitive human can become sophisticated, but not without incurring dreadful psychological damage.”

“Belief can be manipulated. Only knowledge is dangerous.”

“The singular multiplicity of this universe draws my deepest attention. It is a thing of ultimate beauty. Leto II”

“Too Much Knowledge never makes for Simple Decisions.”

“The beginning of knowledge is the discovery of something we do not understand.”

“In the wrong hands,” Leto said, “monolithic centralized power is a dangerous and volatile instrument.” - “And your hands are the right ones?”