Moby Dick by Herman Melville Chapter 35 Page 15

Let me make a clean breast of it here, and frankly admit that I kept but sorry guard. With the problem of the universe revolving in me, how could I — being left completely to myself at such a thought-engendering altitude — how could I but lightly hold my obligations to observe all whale-ships’ standing orders, “Keep your weather eye open, and sing out every time.”

And let me in this place movingly admonish you, ye ship-owners of Nantucket!

Beware of enlisting in your vigilant fisheries any lad with lean brow and hollow eye; given to unseasonable meditativeness; and who offers to ship with the Ph�don instead of Bowditch in his head. Beware of such an one, I say; your whales must be seen before they can be killed; and this sunken-eyed young Platonist will tow