“I used to buy into a former Supreme Court justice's argument that you can't scream fire in a crowded theater. Well, I think you can.”

“The brain is the only kind of object capable of understanding that the cosmos is even there, or why there are infinitely many prime numbers, or that apples fall because of the curvature of space-time, or that obeying its own inborn instincts can be morally wrong, or that it itself exists.”