The word conceits appears in the following sentences from Moby-Dick:
Chapter 1 > Paragraph 15 > Sentence 1:
By reason of these things, then, the whaling voyage was welcome; the great flood-gates of the wonder-world swung open, and in the wild conceits that swayed me to my purpose, two and two there floated into my inmost soul, endless processions of the whale, and, mid most of them all, one grand hooded phantom, like a snow hill in the air.
Chapter 17 > Paragraph 2 > Sentence 1:
I say, we good Presbyterian Christians should be charitable in these things, and not fancy ourselves so vastly superior to other mortals, pagans and what not, because of their half-crazy conceits on these subjects.
Chapter 50 > Paragraph 6 > Sentence 1:
Ahab well knew that although his friends at home would think little of his entering a boat in certain comparatively harmless vicissitudes of the chase, for the sake of being near the scene of action and giving his orders in person, yet for Captain Ahab to have a boat actually apportioned to him as a regular headsman in the hunt—above all for Ahab to be supplied with five extra men, as that same boat's crew, he well knew that such generous conceits never entered the heads of the owners of the Pequod.
Chapter 87 > Paragraph 13 > Sentence 4:
And when he glanced upon the green walls of the watery defile in which the ship was then sailing, and bethought him that through that gate lay the route to his vengeance, and beheld, how that through that same gate he was now both chasing and being chased to his deadly end; and not only that, but a herd of remorseless wild pirates and inhuman atheistical devils were infernally cheering him on with their curses;—when all these conceits had passed through his brain, Ahab's brow was left gaunt and ribbed, like the black sand beach after some stormy tide had been gnawing it, without being able to drag the firm thing from its place.
Concordance for the word conceits from Moby-Dick.