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The true value of a forest isn't measured in board feet, but in biodiversity and carbon sequestration.
大多数人害怕变化,但如果你把它看成是某种你总是可以依赖的东西的话,那它就能成为一种安慰。世上你能依赖的东西并不是很多。
预测未来的最佳方式就是去创造它。
凡是圣人制造的这些东西,无一不是有益于实用才去做的,所以使用财物不浪费,民众能够不劳苦,他兴起的利益太多了。 
Curiosity is the engine of achievement.
Energy poverty is one of the greatest challenges of our time. Access to affordable energy should be a right, not a privilege.