Make someone smile whenever you can, you never know how much of a difference you could be making in their life at that moment.

Make someone smile whenever you can, you never know how much of a difference you could be making in their life at that moment.

无论何时，只要你能让别人微笑，你就永远不知道那一刻你能为他们的生活带来多大的改变。

-- Unknown 佚名