做数学就是与宇宙对话,寻找我们甚至可能还不知道如何提出的问题的答案。
教师必须既是学生的研究者,也是学科的研究者。
祸患转化为幸福,把失败作为成功的根基。如能留的青山在,就不怕没柴烧。
They are not monuments, but footprints. A monument only says, 'At least I got this far,' while a footprint says, 'This is where I was when I moved again.'
It was beautiful and simple as all truly great swindles are.
The essence of drama is conflict, and the essence of conflict is human nature.