"The charm of the Platonic way of thinking, which was a noble way of thinking, consisted precisely in resistance to obvious sense evidence—perhaps among men who enjoyed even stronger and more demanding senses than our contemporaries, but who knew how to find a higher triumph in remaining masters of their senses—and this by means of pale, cold, gray concept nets which they threw over the motley whirl of the senses—the mob of the senses, as Plato said. … “Where man cannot find anything to see or to grasp, he has no further business”—that is certainly an imperative different from the Platonic one, but it may be the right imperative for a tough, industrious race of machinists and bridge-builders of the future, who have nothing but rough work to do."