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森林的真正价值不能仅用板材英尺来衡量。
The past is always with us, for it feeds the present.
The old believe everything, the middle aged suspect everything, the young know everything.
最好的领导者是那些培养更多领导者的人,而不是追随者。
The best way to learn is by doing—get your hands dirty in the lab.
你能做的最好的投资就是投资自己。