Philosophy" means "love of wisdom." Wisdom is not just knowledge but a sense of what knowledge is all about and an insight into the hidden presuppositions underlying the way we look at ourselves and the rest of the world. The wise person understands how things stand to one another in importance. Philosophy begins in wonder—wonder at the world, wonder most of all at the human person. And after philosophical reflection the wonder remains, even though it is wiser. For there is nothing on earth more wonderful than human beings, and the ancient Greek command "Know thyself!" begins a quest that lasts a lifetime.