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 material finds the right object Rather than the craft object finding the most suitable material, it can be said that the material finds the right object. Folk crafts are invariably the product of a local environment. When a certain locality is rich in a certain raw material, that material gives rise to a certain craftware. Yanagi Sōetsu, The Beauty of Miscellaneous Things TerroirWhat the material wants to beWhat the brick really wants. material