of assimilating a great amount of wisdom, while its first foundation is folly. This first folly itself will not lack plausible grounds; there is provocation enough in a single visit to a madhouse for the assertion that the mind can know nothing but the ideas it creates; nevertheless the assertion is false, and such facile scepticism loses sight of the essence of knowledge. The most disparate minds, since they do not regard themselves, may easily regard the same object. Only the maniac stares at his own ideas; he confuses himself in his perceptions; he projects them into the wrong places, and takes surrounding objects to be different from what they are. But perceptions originally have external objects; they express a bodily reaction, or some inward preparation for such a reaction. They are reports. The porpoise and the spider are not shut up in their self-consciousness; however foreign to us may be the language of their senses, they know the sea and air that we know, and have to meet the same changes and accidents there which we meet—and they even have to meet us, sometimes, to their sorrow. Their knowledge does not end in acquaintance with that sensuous language of theirs, whatever it may be, but flies with the import of that language and salutes the forces which confront them in action, and which also confront us. In focussing these forces through the lenses and veils
