知人者智，

自知者明；

胜人者有力，

自胜者强。

知足者富。

强行者有志。

不失其所者久。

死而不亡者寿。

He who knows others is learned;

He who knows himself is wise.

He who conquers others has power of muscles;

He who conquers himself is strong.

He who is contented is rich.

He who is determined has strength of will.

He who does not lose his center endures.

He who dies yet (his power) remains has long life.

摘自林语堂编译《老子的智慧The Wisdom of Laotse》(外语教学与研究出版社， 2009年3月第1版)