A good teacher, like a good entertainer first must hold his audience's attention, then he can teach his lesson.

A good teacher, like a good entertainer first must hold his audience's attention, then he can teach his lesson.

一个好的老师，就像一个好的表演者一样，首先要抓住观众的注意力，然后才能讲课。

-- John Henrik Clarke 约翰·亨里克·克拉克