Matsuri Hino is a great mangaka and she even put wonderful quotes.
This are my favorite quotes:
Yuki to Kaname: "If you are to be branded as a sinful and tainted vampire then.. then I want to fall down with you to the very farthest depths."
Kaname to Yuki: "I can't possibly lose you. If the only option I had was to lose you, then I.. ..I would prefer death instead, be it yours by my hand or... or could you please kill me then Yuki?"
Zero to Yuki: "I was always watching from here. Always watching you watch Kuran Kaname"
Kaname: "Sometimes, forgetting is a type of happiness."
Kaien Cross: "Ahh! Tomatoma soup! (he meant tomato soup)