Knowledge And Ignorance

So far as what there may be of a narrative in this book; and, indeed, as indirectly touching one or two very interesting and curious particulars in the habits of sperm whales, the foregoing chapter, in its earlier part, is as important a one as will be found in this volume; but the leading matter of it requires to be still further and more familiarly enlarged upon, in order to be adequately understood, and moreover to take away any incredulity which a profound ignorance of the entire subject may induce in some minds, as to the natural verity of the main points of this affair.

How is it, that you, a mere oarsman in the fishery, pretend to know aught about the subterranean parts of the whale? Did erudite Stubb, mounted upon your capstan, deliver lectures on the anatomy of the Cetacea; and by help of the windlass, hold up a specimen rib for exhibition? Explain thyself, Ishmael.