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
No words to describe If there is no term for something, it might be thought that the commodity is of small importance. But it is just as likely that this something is of such importance that it is taken for granted, and thus any conveniences, like words, for discussing it are unnecessary. Donald Richie, A Tractate on Japanese Aesthetics The quality without a nameThis is Water meaningwords