A quote i like from Shawshank Redemption is "Get busy living or get busy dying" because it is life painted in a few simple words.
I love that movie and i'm sure the book is good too but my concentration is not made for reading. Maybe it will get better and i can read it some day. But for now i'm glad they made it into a movie. It is a classic.
It's not the opening line, but its a good line nevertheless.