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人總是比他已做的更多；他也是他能做的。

"We are all in the gutter, but some of us are looking at the stars."

Happiness is not something ready made. It comes from your own actions.

The profession of book writing makes horse racing seem like a solid, stable business.

科學(xué)中的創(chuàng)新往往來自于以新的方式看待老問題。