“The visual and intellectual enjoyment of well-formatted code is a pleasure that few nonprogrammers can appreciate. But programmers who take pride in their work derive great artistic satisfaction from polishing the visual structure of their code.”
“…there is a psychological basis for writing programs in a conventional manner: programmers have strong expectations that other programmers will follow these discourse rules. If the rules are violated, then the utility afforded by the expectations that programmers have built up over time is effectively nullified.”
“The smaller part of the job of programming is writing a program so that the computer can read it; the larger part is writing it so that other humans can read it.”
“The information contained in a program is denser than the information contained in most books. Whereas you might read and understand a page of a book in a minute or two, most programmers can’t read and understand a naked program listing at anything close to that rate. A program should give more organizational clues than a book, not fewer.”
The Agile Warrior 