Incorrect documentation is often worse than no documentation.
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.
Simplicity is prerequisite for reliability.
Controlling complexity is the essence of computer programming.
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.