Instinct is a shapeless giant in the cave, massive, without hands or fingers or articulating lips or teeth or tongue; Behemoth, disdaining speech, disdaining particulars, lurking, surly, invincible, disdaining thoughts, always whole, never distributed, aboriginal, old as nature, and saying, like poor Topsy, “ never was born, growed.” In-different to the dignity of its function, it plays the god in animal nature as in human or as in the angelic, and spends its omniscience on the lowest wants.