Jonathan Swift said this quote

“ I have one word to say upon the subject of profound writers, who are grown very numerous of late; and I know very well the judicious world is resolved to list me in that number. I conceive therefore, as to the business of being profound, that it is with writers as with wells; a person with good eyes may see to the bottom of the deepest, provided any water be there; and often, when there is nothing in the world at the bottom, besides dryness and dirt, though it be but a yard and half under ground, it shall pass however for wondrous deep, upon no wiser a reason than because it is wondrous dark. ”