I'm really a scientist. I follow recipes exactly - until I decide not to. And then I'll follow something else exactly. I may decide I could turn this peach tart into a plum tart, but if I'm following a recipe, I follow it exactly.
“As basic rules of a language must be practiced continually, and therefore are never fixed, so exercises toward distinct color effects never are done or over. New and different cases will be discovered time and again.”