愚蠢的人和聪明的人之间的区别——无论他们是否受过良好教育——在于聪明的人能够处理微妙之处。
I use text and image together because words alone are not enough.
The truth is: the natural world is changing. And we are totally dependent on that world. It provides our food, water and air. It is the most precious thing we have and we need to defend it.
试图在不激发学生学习欲望的情况下进行教学的老师，就像在冷铁上敲打。
The most radical thing you can do is to be absolutely contextual.