On Being has a nice little archive of rare audio clips from Albert Einstein, speaking on various subjects, including what it means to be American, E=MC^2, Gandhi, and "The common language of science."
((Photo: Einstein sitting on the front steps of his home in Princeton, wearing his fuzzy slippers. Photo courtesy of Gillett Griffin.) )
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.