Some people, when confronted with a problem, think "I know, I’ll use regular expressions." Now they have two problems — Jamie Zawinski

Walking on water and developing software from a specification are easy if both are frozen. -Edward V Berard

Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it. -Brian Kernighan

The first 90% of the code accounts for the first 90% of the development time. The remaining 10% of the code accounts for the other 90% of the development time. -Tom Cargill

Hofstadter's Law: It always takes longer than you expect, even when you take into account Hofstadter's Law.

It should be noted that no ethically-trained software engineer would ever consent to write a DestroyBaghdad procedure. Basic professional ethics would instead require him to write a DestroyCity procedure, to which Baghdad could be given as a parameter. -Nathaniel S Borenstein

The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...' -Isaac Asimov

There are only 3 numbers of interest to a computer scientist: 1, 0 and infinity

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

Debuggers don't remove bugs. They only show them in slow motion.

Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away. -Antoine de Saint Exupéry

Perl — The only language that looks the same before and after RSA encryption. -Keith Bostic