A person,kind to their own; two people,then kind to each other
一个人,就要对自己好；两个人,就要相互间友好.
即：一个人,善待自己;两个人,那么善待对方
知识在于点滴积累,更在于不懈努力.
——另外,正在冲采纳率,请记得采用,