Why did the world go on being so beautiful in spite of the ugliness he had experienced? The lake was beautiful, serenely beautiful. The forest was beautiful, greenly beautiful. Lake and forest, the whole shimmering world was painfully beautiful. He loved this world, but he was too hurt to enjoy it.
We have lived our lives by the assumption that what was good for us would be good for the world. We have been wrong. We must change our lives so that it will be possible to live by the contrary assumption, that what is good for the world will be good for us. And that requires that we make the effort to know the world and learn what is good for it.