A mathematician is a maker of patterns, like a painter or a poet.

内心平和，生活自然舒适。

I write to find out what I think.

The beauty of physics lies in its ability to explain the complexities of the universe with simple principles.

Sometimes the hardest thing to do is nothing at all.

因此，教学艺术无非是时间、科目和方法的巧妙安排。