The world is constantly changing. You're constantly learning and you have to be willing to get off your mark, and get off your spot and take that knowledge you have not to fix yourself into a place but to keep going.
He who regards the world as he does the fortune of his own body can govern the world. He who loves the world as he does his own body can be entrusted with the world.
America is not the crude stereotype of a self-interested empire. Given our interdependence, any world order that elevates one nation or group of people over another will inevitably fail.
The point is not that this world is too sad to love or too glad not to love; the point is that when you do love a thing, its gladness is a reason for loving it, and its sadness a reason for loving it more.