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

You can't build politics on love. People aren't concerned with love; it's too disordered. They prefer despotism. Too much freedom breeds chaos.

Leto turned a hard stare at Kynes. And Kynes, returning the stare, found himself troubled by a fact he had observed here: This Duke was concerned more over the men than he was over the spice. He risked his own life, and that of his son to save the men. He passed off the loss of a spice crawler with a gesture. The threat to men's lives had him in a rage. A leader such as that would command fanatic loyalty. He would be difficult to defeat. Against his own will and all previous judgements, Kynes admitted to himself: I like this Duke.

The most terrifying things in the universe came from human minds.

The real universe is always one step beyond logic.

Any road followed precisely to its end leads precisely nowhere. Climb the mountain just a little bit to test it's a mountain. From the top of the mountain, you cannot see the mountain.

If enough of us believe, a new thing can be made to exist. Belief structure creates a filter through which chaos is sifted into order.