The question of whether a computer can think is no more interesting than the question of whether a submarine can swim.

Raise your quality standards as high as you can live with, avoid wasting your time on routine problems, and always try to work as closely as possible at the boundary of your abilities. Do this, because it is the only way of discovering how that boundary should be moved forward.

Computer Science is no more about computers than astronomy is about telescopes

Simplicity is prerequisite for reliability.

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

Simplicity is a great virtue but it requires hard work to achieve it and education to appreciate it. And to make matters worse: complexity sells better.