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It's all about trying to be a little less ignorant and a little less selfish every day.

免費的疫苗比昂貴的治療更有價值，但更難推廣。

世界充滿了神奇的東西，它們在耐心地等待我們變得更有智慧。

Innovation in coal mining isn't about reinventing the wheel, but about making the wheel more efficient and environmentally friendly.

數學的目標是以更深的方式理解宇宙。