The Best Line... Ever.

So, my love of the movies continues, and I just thought that it might be nice to explore some of the great lines of dialogue that we are all, perhaps, familiar with. Who could forget, for instance, Humphrey Bogart saying, "Play it again, Sam", in "Casablanca" (a line which, by the way, I believe was never actually spoken in the film, and what Bogart actually says is, simply, "Play it, Sam").  Or what about Jimmy Cagney saying, "You dirty rat", but again, it is thought that Cagney never actually said that.
Perhaps better then to concentrate on lines that do actually appear in movies, and returning to Cagney, I believe that he does say the line, "Top of the world, ma", before being blown to smithereens in the film, "White Heat". Or what about Robert DeNiro in "Taxi Driver", holding a gun while looking in a full-length mirror and saying, ominously, "Are you talkin' to me?". Or perhaps Robert Duval in "Apocalypse Now!", intoning to his fellow soldiers that, "I love the smell of napalm in the morning. Smells like... victory". Or even Jack Nicholson in "The Shining", wielding an axe and then looking demoniacally through a hole in the door and saying, "Heeeeres Johnny!". Or perhaps William Holden at the beginning of Sam Peckinpah's great western, "The Wild Bunch", saying "If they move, kill 'em!".
OK, so all my choices so far seem to be veering towards the more violent side of things. But I do also like more subtle lines, and I remember when watching "Rio Bravo" that I was greatly impressed by the little bit of dialogue between John Wayne and Dean Martin, in which Martin, waking bleary-eyed with a hangover, asks Wayne, "what are you looking at?", to which Wayne simply replies, "A badge with a drunk on the end of it".
Also, there are a fair few classic comedy lines, and here perhaps the most quoted of them all is one of my own favourites, Woody Allen. The particular line I like is from "Annie Hall", when Woody's character (and some might say alter ego) Alvie Singer remembers his school days, the voice over stating, "they often say that those who can't do teach. And those who can't teach teach gym". There are, of course, many other famous Woody lines, but for some reason that one sticks in my mind.
So, there are lines in movies which would appear to move into the realms of the iconic, taking on a life of their own, often remembered as almost separate entities from the films they appeared in. Of all the lines which seem to have taken on iconic status in more recent memory is perhaps the one from Rob Reiner's film, "When Harry Met Sally", in which Meg Ryan is shown sitting opposite Billy Crystal very vocally faking an orgasm, which prompts a lady at a nearby table to say, "I'll have what she's having".
I'm sure we all have our favourite movie line, then. And, no doubt, "I'll be back" to comment on your comments, should you choose to leave one. After all, tomorrow is another day!