This is my favorite scene from Flashdance. Alex is walking past all these prissy little ballerinas, head held up. She got chased off once, she won't be intimidated again. I think everyone can relate to this scene in one way or another; everyone is giving you the message, "You don't belong here," but you just keep on. This image is so powerful, it doesn't even need a caption.
(Yes, I can weld, but I'm not as good a welder as Alex was!)