Nora Ephron said this quote

“ Harry Burns: You realize of course that we could never be friends. Sally Albright: Why not? Harry Burns: What I'm saying is - and this is not a come-on in any way, shape or form - is that men and women can't be friends because the sex part always gets in the way. Sally Albright: That's not true. I have a number of men friends and there is no sex involved. Harry Burns: No you don't. Sally Albright: Yes I do. Harry Burns: No you don't. Sally Albright: Yes I do. Harry Burns: You only think you do. Sally Albright: You say I'm having sex with these men without my knowledge? Harry Burns: No, what I'm saying is they all WANT to have sex with you. Sally Albright: They do not. Harry Burns: Do too. Sally Albright: They do not. Harry Burns: Do too. Sally Albright: How do you know? Harry Burns: Because no man can be friends with a woman that he finds attractive. He always wants to have sex with her. Sally Albright: So, you're saying that a man can be friends with a woman he finds unattractive? Harry Burns: No. You pretty much want to nail 'em too. Sally Albright: What if THEY don't want to have sex with YOU? Harry Burns: Doesn't matter because the sex thing is already out there so the friendship is ultimately doomed and that is the end of the story. Sally Albright: Well, I guess we're not going to be friends then. Harry Burns: I guess not. Sally Albright: That's too bad. You were the only person I knew in New York. ”