Quote 1
"Can I have the carriage?" said Jane.
"No, my dear, you had better go on horseback, because it seems likely to rain; and then you must stay all night." (7.22-23)
All's fair in love and war, including incredibly transparent tricks. Luckily, Mr. Bingley is way too good-natured to see through it, even if his sisters do.
Quote 2
"They have both," said she, "been deceived, I dare say, in some way or other, of which we can form no idea. Interested people have perhaps misrepresented each to the other. It is, in short, impossible for us to conjecture the causes or circumstances which may have alienated them, without actual blame on either side." (17.1-2)
Jane can't believe Wickham's story about Darcy, so she comes up with an explanation: they've been deceived. Unfortunately, they're the ones who are being deceived by that class A liar, Wickham.
Quote 3
"I will answer for it, he never cared three straws about her—who could about such a nasty little freckled thing?"
Elizabeth was shocked to think that, however incapable of such coarseness of expression herself, the coarseness of the sentiment was little other than her own breast had harboured and fancied liberal! (39.13-15)
This is a really great moment, pointing out how that Lydia isn't some kind of totally alien outsider in her family. She's more like their irrepressible id, the side of all of them that's is interested in comfort, pleasure, food, and sex. It's not that Lydia thinks differently than others; it's just that she actually says what she's thinking. The girl just talks with no filter.