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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。
A teacher who is attempting to teach without inspiring the pupil with a desire to learn is hammering on cold iron.
技巧不是属于我们自身的东西,所谓的优劣智愚不过是教育的产物,但是人的精神境界却有优劣区别。
In mathematics, the art of proposing a question must be held of higher value than solving it.
The challenge is to make the invisible visible.