It is one of the beautiful compensations of this life that no one can sincerely try to help another without helping herself.

 

——Charles Dudley Warner

 

Men are rich only as they give. He who gives great service gets great returns.

 

寻求快乐的一个很好的途径是不要期望他人的感恩,付出是一种享受施与的快乐。

 

——卡耐基【美】