"My thinking about plastic surgery is this. I haven't had it, but never say never. Because when you do, you are definitely going to go there. I said I would never have intercourse before I was married, and I did. I said I would never go to a psychiatrist, and I spent much of my life in psychoanalysis. I've done all kinds of things I said I wouldn't do and, of course, now I'm glad. Thrilled." Diane Keaton refuses to rule out cosmetic enhancement as she grows older.