Any fool can write code that a computer can understand. Good programmers write code that humans can understand.
Martin Fowler

Before software can be reusable it first has to be usable.
--Ralph Johnson

Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live.
--John Woods

Software is either testable or detestable.
--Anonymous

Code is there to explain the comments to the computer.
--Andy Harris

Documentation is a love letter that you write to your future self.
--Damian Conway

It’s not a bug; it’s an undocumented feature.
--Anonymous

Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.
--Rick Cook, The Wizardry Compiled

A language that doesn't affect the way you think about programming is not worth knowing.
--Alan J. Perlis

It's hard enough to find an error in your code when you're looking for it; it's even harder when you've assumed your code is error-free.
--Steve McConnell

The only way to learn a new programming language is by writing programs in it.
--Dennis Ritchie

One of my most productive days was throwing away 1000 lines of code.
--Ken Thompson