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To be a writer is to be a professional observer.

The person who tries to live alone will not succeed as a human being. His heart withers if it does not answer another heart. His mind shrinks away if he hears only the echoes of his own thoughts and finds no other inspiration.

Your voice matters, use it.

如果不衡量影響，我們只是在猜測可持續性。

免費的疫苗比昂貴的治療更有價值，但更難推廣。