Respectable people do not write music or make love as a career.
Aleksandr Borodin

Studies or experiments in the actual material are (now) made, for here many things are revealed which could not possibly be shown on paper. The character of a twisted member or the flexibility of the material might be used for example to show how difficult it would be to conceive many things in the drawings. For this reason the true craftsman should often make a fragment or portion of the ornament in the actual material first, and make the drawings later. (Samuel Yellin)