Tried to find ones which I think represented the characters well, with help of google:
1: "One day I shall come back. Yes, I shall come back. Until then, there must be no regrets, no tears, no anxieties. Just go forward in all your beliefs and prove to me that I am not mistaken in mine"
2 and 3... don't know them well enough yet.
4: "Not even the sonic screwdriver can get me out of this one."
5: "Oh, marvellous. You're going to kill me. What a finely tuned response to the situation."
6: "In all my travelling throughout the universe, I have battled against evil, against power-mad conspirators. I should have stayed here. The oldest civilisation: decadent, degenerate, and rotten to the core. Power-mad conspirators, Daleks, Sontarans, Cybermen - they're still in the nursery compared to us. Ten million years of absolute power. That's what it takes to be really corrupt."
7: "The Doctor: I don't suppose you've completely ignored my instructions and secretly prepared any Nitro-9, have you?
Ace: What if I had?
The Doctor: And naturally, you wouldn't do anything so insanely dangerous as to carry it around with you, would you?
Ace: Of course not. I'm a good girl and do what I'm told.
The Doctor: Excellent. Blow up that vehicle.
8: " I came back to life before your eyes. I held back death. Look, I can't make your dream come true forever, but I can make it come true today."
9: "The first time they tell you that the world's turning and you just can't quite believe it 'cause everything looks like it's standin' still. I can feel it. The turn of the Earth. The ground beneath our feet is spinnin' at 1,000 miles an hour and the entire planet is hurtling around the sun at 67,000 miles an hour, and I can feel it. We're fallin' through space, you and me, clinging to the skin of this tiny little world, and if we let go... That's who I am."
10: "That's who I am: the Time Lord Victorious!
(later) I've gone too far. Is this it? My death? Is it time!?"
11: "I'm being extremely clever up here and there's no one to stand around looking impressed! What's the point in having you all?"