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
Ordinariness We have a habit of thinking that the deepest insights, the most mystical, and spiritual insights, are somehow less ordinary than most things - that they are extraordinary. In fact, the opposite is true: the most mystical, most religious, most wonderful – these are not less ordinary than most things – they are more ordinary than most things. And it is because they are so ordinary, indeed, that they strike to the core. Christopher Alexander, The Timeless Way of Building The natural thing to do beautyspirit