Production speed is severely slowed down if one works with half-time people who have other obligations as well. This is at least a factor of four; probably it is worse.

If debugging is the process of removing software bugs, then programming must be the process of putting them in.

The question of whether computers can think is like the question of whether submarines can swim.

Programming is one of the most difficult branches of applied mathematics; the poorer mathematicians had better remain pure mathematicians.

The lurking suspicion that something could be simplified is the world's richest source of rewarding challenges.

Computer science is no more about computers than astronomy is about telescopes.

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

Simplicity and elegance are unpopular because they require hard work and discipline to achieve and education to be appreciated.

Program testing can be used to show the presence of bugs, but never to show their absence!

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

Teaching COBOL ought to be regarded as a criminal act.

I don't like to practice; I like spontaneity. When I don't play guitar for a week and I pick it up again, I play better.

Muslims stand by their religion entirely. It is a sort of religious absolutism. While Europeans have stopped defending the values of their civilization. They confuse tolerance with relativism.

The present is the key to the past

The first essential in a boy's career is to find out what he's fitted for, what he's most capable of doing and doing with a relish.

Apollo 13, as you may remember, gave us a reactor that is bubbling away right now somewhere in the Pacific. It's supposed to be bubbling away on the moon, but it's in the Pacific Ocean instead.

Don't wait for an employer, friend, or mentor to show appreciation for your work. Take pride in your own efforts on a daily basis.

Why does the past look so enticing to us? For the same reason why from a distance a meadow with flowers looks like a flower bed.

Life is nothing but a memory. People who dwell on the bad ones aren't going to have a whole lot of good ones coming up.

Life is sometimes very complicated, but we can purposely learn to enjoy the simple yet powerful and beautiful things God has created!

Lovers are rarely the most rational beings in creation.