There's a quote about dreamers just dream, they never try to accomplish their dreams...?

I think it was in a movie or a book, it was something about how dreamers, they never get up and accomplish their dreams. It was an old guy who said it, and he was like "thats the problem with dreamers. They never try to accomplish their dreams" or something along those lines. I thought it might have been from "Rudy" but I can't find it. Any ideas?