不以物喜，不以己悲。居庙堂之高则忧其民，处江湖之远则忧其君。是进亦忧，退亦忧。然则何时而乐耶？其必曰：先天下之忧而忧，后天下之乐而乐乎。

——范仲淹

Do not rejoice over external things, nor grieve over personal losses. When dwelling high in the court, one worries about the people; when living far away in rivers and lakes, one worries about the sovereign. Thus, whether in office or in retirement, one is full of concern. When, then, can one find joy? He would surely say: be the first to worry about the world's troubles, and the last to enjoy the world's pleasures.

—Fan Zhongyan