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现代生活的最大悲剧是我们拥有我们想要的一切,但没有我们需要的东西。
The greatest tragedy of modern life is that we have everything we want, but nothing we need.
学习不是强制性的...生存也不是。
In your life there are a few places, or maybe only the one place, where something happened, and then there are all the other places.
Sustainability isn't a cost—it's an investment in our future.