《贞观政要·卷六·论俭约》
臣听说： 为别人着想的人能康健，以自私夺利为思想的人不能长存。 
臣闻 以欲从人者昌，以人乐己者亡。 
Your subject has heard: A person who thinks for others shall be healthy, a person whose mindset is only to selfishly gain benefits, shall not survive long.