学习数学的唯一方法就是做数学。
The only way to learn mathematics is to do mathematics.
我们奋力前行,小舟逆水而上,不断地被浪潮推回到过去。
The problem is not that there are problems. The problem is expecting otherwise and thinking that having problems is a problem.
生命中最重要的问题往往没有答案,而我们必须学会与这些问题共存。