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閱讀使人充實，談論使人機敏，寫作使人精確。

可持續性不是一種選擇；而是我們對后代的責任。

The only limits you have are the ones you set for yourself.

The forest doesn't need us, but we need the forest—this truth should guide every decision we make in forestry.

過去半個世紀最重要的政治發展是自由民主在世界范圍內的傳播。