““He reaches under the desk and takes out a book. It is thick, with a worn cover and frayed edges. On it is printed HUMAN BIOLOGY. “It’s a little rudimentary, but this book helped to teach me what it is to be human,” he says. “To be such a complicated, mysterious piece of biological machinery, and more amazing still, to have the capacity to analyze that machinery! That is a special thing, unprecedented in all of evolutionary history. Our ability to know about ourselves and the world is what makes us human.””
