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
Phonaesthetics Phonaesthetics is the study of beauty and pleasantness associated with the sounds of certain words or parts of words. The term was first used in this sense, perhaps by J. R. R. Tolkien, during the mid-twentieth century and derives from the Greek: φωνή (phōnē, "voice-sound") plus the Greek: αἰσθητική (aisthētikē, "aesthetic"). Wikipedia en.wikipedia.org Sonorisms IGods of the Word euphony