Art is not to escape reality, but to face it.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
"That is what is so strange, that people will not believe what is really true, what is before their eyes."
演讲者应让听众充分相信,他已竭尽全力为他们带来愉悦与教益。
一个试图教学而不激发学生学习欲望的教师,就像在冷铁上敲打。
The more you give, the more you get.