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——〈建國方略之一：孫文學說——行易知難〉，1919年5月20日

唯一值得寫的是人類內心與自我的沖突。

Chemistry is the art of building bridges between the microscopic and the macroscopic.

You have to believe in the long term plan you have but you need the short term goals to motivate and inspire you.

千里之行，始于足下。