A smile begets a smile, simple courtesies encourage politeness, and a thoughtful gesture lingers in the heart.

A smile begets a smile, simple courtesies encourage politeness, and a thoughtful gesture lingers in the heart.

微笑引发微笑，简单的礼貌鼓励礼貌，深思熟虑的手势留在心里。

-- Unknown 佚名