"Cooking also obeys the laws of physics, in particular chemistry. Yet it is quite possible to cook without understanding it. You can cook better if you do understand what is going on, particularly if you want to deviate from the ways that people have cooked before. If you want to follow a recipe exactly, slavishly, what the hell, you can do it without understanding it. As a rote automaton, you can say, "yes, I mixed this, I cook at this temperature" and so forth. But if you want to do something really different, if you want to go color outside the lines, if you want to go outside of the recipe, it helps if you have some intuition as to how things work."