What's your favourite quote about programming?
One quote per answer, and please check for duplicates before posting!
Being able to get a machine to do what you want is the closest thing we've got in technology to adolescent wish-fulfillment.
— Guy Steele in Coders at Work
I'll call him Mel, because that was his name.
From The story of Mel
The required techniques of effective reasoning are pretty formal, but as long as programming is done by people that don't master them, the software crisis will remain with us and will be considered an incurable disease. And you know what incurable diseases do: they invite the quacks and charlatans in, who in this case take the form of Software Engineering gurus.
You should go home if you are thinking suicidal thoughts.
— Robert Read, "How to be a Programmer"
Don't write too much. Concentrate your sweat on one story, rather than dissipate it over a dozen.
Somehow, I missed the (paraphrased, shorter) duplicate of this one:
Don't loaf and invite inspiration; light out after it with a club, and if you don't get it you will nonetheless get something that looks remarkably like it."
Part of one quote; I split them to narrow down the topic.
You can't trust code that you did not totally create yourself. (Especially code from companies that employ people like me.)
— Ken Thompson, "Reflections on Trusting Trust"
I wish I could make Lust and Gluttony helpful but Sloth, Pride and Envy are certainly great for programmers." ~ Kenneth Clowes
Don't code today what you can't debug tomorrow
from this blog's title