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
It was all change until the very last second Every work of literature is the result of thousands and thousands of decisions. Intricate, minute decisions—this word or that, here or where, now or later, again and again. It's the living tissue of a writer's choices, Not the fossil record of an ancient, inspired race. Verlyn Klinkenborg, Several Short Sentences About Writing A concept of style decisionscraft