暂且祝自己教师节快乐吧 2016-09-09

刚刚走在校园里，学生看到我打招呼，说老师好，随便聊了几句，学生说“老师，你看起来挺年轻啊，是博士毕业么”，我说刚毕业不久，学生眼中好像有点羡慕或者什 ...

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what is science 2009-04-15

Science is like sex : sometimes something useful comes out, but that is not the reason we are doing it. —— Richard Feynman

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