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The world is full of people whose notion of a satisfactory future is, in fact, a return to the idealised past.

谷物生產的效率不是選擇，而是必需。

The true measure of a forest's worth isn't in board feet of timber, but in centuries of ecological balance.

理論物理學的美麗在于它能夠用幾個簡單的方程描述宇宙，揭示出表面復雜性之下的基礎簡單性。