The use of COBOL cripples the mind; its teaching should, therefore, be regarded as a criminal offense.

Teaching to unsuspecting youngsters the effective use of formal methods is one of the joys of life because it is so extremely rewarding.

There should be no such thing as boring mathematics.

The effort of using machines to mimic the human mind has always struck me as rather silly. I would rather use them to mimic something better.

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.

The competent programmer is fully aware of the limited size of his own skull. He therefore approaches his task with full humility, and avoids clever tricks like the plague.