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The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
写作的行为是一种乐观的行为。如果你觉得它不重要,你就不会费心去做。
探求事理方法要缓缓,仔细品尝涵泳才能有所心得;欲念决断方法要果断,奋力果决才能自新。
Sustainability is not a trend; it's a responsibility we all share.