What's your favourite quote about programming?
One quote per answer, and please check for duplicates before posting!
The best indication of software quality is consistent indentation
I read this when I was following up footnotes in SICP once but I've not been able to find it since, so a) I can't attribute it and b) I am writing from memory, and more than likely paraphrasing. I have, however, found it to be true.
(Or, It Takes One to Know One)
I have often felt that programming is an art form,
whose real value can only be appreciated
by another versed in the same arcane art;
there are lovely gems and brilliant coups
hidden from human view and admiration, sometimes forever,
by the very nature of the process.
You can learn a lot about an individual
just by reading through his code, even in hexadecimal.
From The Story of Mel, a Real Programmer (free verse version)
I had no idea there was actually a short Wikipedia article with links to both prose and verse versions of the story, along with other information.