Earth and sky, woods and fields, lakes and rivers, the mountain and the sea, are excellent schoolmasters, and teach some of us more than we can ever learn from books.
大地与天空，森林与田野，湖泊与河流，高山与海洋，都是优秀的老师，他们教给我们的东西比我们从书本上学到的还要多。
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Learning