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The reason why men enter into society is the preservation of their property.

文學(xué)是語言的藝術(shù)，而語言是思想的工具。

I learned that my pain could be my power.

出自《論語·子罕篇第九》。我曾經(jīng)用盡全力，但是孔夫子仍然卓立在我的面前，我想要去追從他，但是總覺得沒有辦法能夠追上去。

Collaboration is essential in research; no one can solve big problems alone.