民族的灵魂活在它的语言中。
The most exciting thing is when you suddenly see the solution to a problem that has been puzzling you for a long time.
你所要做的就是写一个真实的句子。写出你所知道的最真实的句子。
"In every equation, there is a story waiting to be told."
上帝会原谅我;这是他的工作。