唯一真正的快乐是创造的快乐。
The only real joy is the joy of creation.
因此，教学艺术无非是时间、科目和方法的巧妙安排。
I'm the narrator, and this is my life.
The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all.
The only way to escape the system is to play with it, to turn its own logic against itself.