Hierarchy.—First and foremost, there are the superficial thinkers, and secondly the profound thinkers—such as dive into the depths of a thing,—thirdly, the thorough thinkers, who get to the bottom of a thing—which is of much greater importance than merely diving into its depths,—and, finally, those who leap head foremost into the marsh: though this must not be looked upon as indicating either depth or thoroughness! these are the lovers of obscurity.13