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Financial crises are not acts of God. They are caused by human actions and can be prevented by human actions.

Lock up your libraries if you like; but there is no gate, no lock, no bolt that you can set upon the freedom of my mind.

The wild doesn’t give you second chances. You have to make every moment count.

教育是可持續林業實踐生長的種子。

有時我希望有人能找到我

尋找意義的意志是人的主要動力。

技術必須服務于社會，而不是相反。