This is my favorite passage from the whole book:
"Because," he said, "I sometimes have a queer feeling with regard to you, especially when you are near me, as now; it is as if I had a string somewhere under my left ribs, tightly and inextricably knotted to a similar string situated in the corresponding quarter of your little frame. And if that boisterous channel, and two hundred miles or so of land, come broad between us, I am afraid that cord of communion will be snapped; and then I've a nervous notion I should take to bleeding inwardly. As for you, you'd forget me."
- Chapter 23, Page 295
There are others... But while I don't think it would give anything away, I still don't want to post it because it's in the second to last chapter.
There is also a single sentence that made me cry - but that does contain a major spoiler...
So really, if you haven't yet, you should just read this book. You will be a very very very happy reader. :) But until then, enjoy the quote above...
Happy Reading! :)