"You Two! We're at the end of the universe, eh. Right at the edge of knowledge itself. And you're busy… blogging!" — The Doctor, Utopia
It’s not perfect (see this analysis from Copyright Librarian,) but it’s darn close and way better than the one I didn’t post that insisted that you should only consider fair use after failing to get permission. Click image for source, full-sized version, and to order a poster.