So these are, によって far, my お気に入り 名言・格言 from the first 3 books. (I haven't read breaking dawn yet :P)
1.If seth didn't cut it out, I was going to throw a pinecone at him.-Bella (I just think that's hilarious.)
2.Your hair looks like a haystack. But I like it. -Edward
3.I 愛 you. I want you. Right now. -Edward.
4.Marry me first. -Edward
5.I'll never forgive myself for leaving you.-Edward
6.Does my being half naked bother you? -Jacob
I can't think of any more... But feel free to add on XD