It must certainly be more dangerous to live in ignorance than to live with knowledge.
The clear and safe path leads evermore into stagnation
Control the coinage and the courts — let the rabble have the rest.
If wishes were fishes, we'd all cast nets.
The Fremen were supreme in that quality the ancients called "spannungsbogen" -- which is the self-imposed delay between desire for a thing and the act of reaching out to grasp that thing.
A world is supported by four things: the learning of wise, the justice of great, the prayers of the righteous and the valor of the brave. But all of these are as nothing without a ruler who knows the art of ruling.