Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction.

When working on a problem, think only how to solve it. If the solution is not simple and has no inner beauty such as art, it is wrong.

Unix has retarded OS research by 10 years and linux has retarded it by 20.

Simplicity is prerequisite for reliability.

The crazier the theory, the more likely it is to be correct.