[1337shadow]

I would also add that I consider this practice as a triangle: science, art and sports.

Science: because a scientific protocol is to be used when making and testing code, to understand every detail, and because it's based on logic

Art: because code should first be written for another human (or you in 6 months) to read and understand, that it works or not is secondary,

Sports: because you need everyday to be in the retrospective of your past performance and try to improve it