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Sustainability must be profitable, or it won't be sustainable.
如果我们足够明智地正确开发,未来的粮食安全就在海浪之下。
The story is told by the dead, and the dead have no need for lies.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
In mathematics, you don't understand things. You just get used to them.