Hermione

1.Books!And clevrness! There are more important things--friendship and bravery!

2.Ron: That's what Hermione does. When in doubt go to the library.

3.That is the second time you have spoken out of turn, Miss Granger," said Snape coolly. "Five more points from Gryffindor for being an insufferable know-it-all."

4.Professor Lupin: "You're the cleverest witch of your age I've ever met, Hermione."

5.A slightly stunned silence greeted the end of this speech, then Ron said, "One person can't feel all that at once, they'd explode."
"Just because you've got the emotional range of a teaspoon doesn't mean we all have," said Hermione nastily, picking up her quill again.

6.Just because it's taken you three years to notice, Ron, doesn't mean no one else has spotted I'm a girl!"

7. "You said to us once before," said Hermione quietly, "that there was time to turn back if we wanted to. We've had time, haven't we?"