Designer, implementor, user, writer A Fragment by Donald Knuth dl.acm.org Thus, I came to the conclusion that the designer of a new system must not only be the implementor and the first large-scale user; the designer should also write the first user manual. The separation of any of these four components would have hurt TeX significantly. If I had not participated fully in all these activities, literally hundreds of improvements would never have been made, because I would never have thought of them or perceived why they were important. Eating your own dog food making
The Tao of rationality If you would learn to think like reality, then here is the Tao: Since the beginning not one unusual thing has ever happened. Eliezer Yudkowsky, Rationality: From AI to Zombies Mystery exists in the mind realityrationality