similar experience—he is looking for a spot to relieve himself. Toby does not have the ability to reflect on the beauty of the world, but human beings do. It was Jean-Paul Sartre, a French existentialist philosopher, who said that the human animal is the only animal that knows it is going to die. That knowledge affects us even when we are not consciously thinking about our own mortality. We plan our days knowing that our time is limited. We can and often do think about things like God, the afterlife,