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Efficiency and environmental responsibility can—and must—go hand in hand.

The aim of education should be to teach us rather how to think, than what to think—rather to improve our minds, so as to enable us to think for ourselves, than to load the memory with thoughts of other men.

Mathematics is not a spectator sport—you have to engage with it to appreciate its beauty.

The world always seems brighter when you've just made something that wasn't there before.

可持續采石意味著像傾聽股東一樣認真地傾聽土地的聲音。