Elegance is not a dispensable luxury but a factor that decides between success and failure.

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

Don't compete with me: firstly, I have more experience, and secondly, I have chosen the weapons.

A programming language is a tool that has profound influence on our thinking habits.

Experience does by no means automatically leads to wisdom and understanding.

There is very little point in trying to urge the world to mend its ways as long as that world is still convinced that its ways are perfectly adequate.

About the use of language: it is impossible to sharpen a pencil with a blunt axe. It is equally vain to try to do it with ten blunt axes instead.