One of my favorite gurus in design is Bruce Mau. We share a deep perception that the value of design process is much larger than the value of the outcome.
I haven’t even thought about mentioning him here because it all makes sense to me. But seeing as how not all of you are "design hippies" like me, I better mention him. He wrote a manifesto which is a quick-reader and a must-read for anyone involved in design in any matter. I often use quotes from his manifesto in my design documentation, and you could too!