When a father gives to his son, both laugh; When a son gives to his father, both cry.

When a father gives to his son, both laugh; When a son gives to his father, both cry.

当父亲给予儿子时，两人都笑了;当一个儿子给了他的父亲，两人都哭了。

-- William Shakespeare 威廉·莎士比亚