澹泊明志，宁静致远

Explanation: Dan Bo: Do not pursue fame and fortune; quiet: calm composure. Not the pursuit of fame and fortune, lives a simple life in order to show his noble sentiment; feeling calm and stable, dedicated, can make a difference. 　　Source: Han Liu, "Huainanzi primary surgery training" to the actual occurrence of non-desert no Dan intelligent, quiet and not to non-Zhi Yuan. " 　　Examples: As for the wide leisure of the wild, lonely coast, every apartment from the joy of their days pregnant, and ~, not a bad idea everywhere revealed. (Qing Anonymous "Du Yan Zhi" Volume)