The science [of painting], although it is not absolutely necessary, never hurts. It obviates much experimentation by trial and error, but one must, above all, not confuse it with skill. The first can be taught; the second [= skill] must not be, and must even be combatted.. .What will necessarily happen to manual skill is.. if one neglects it, it becomes all the more clumsy and personal.
— PAUL SÉRUSIER