天下战乱不断，朝中何人敢主动请战？

Don't try to win a friend by presenting gifts。You should instead contribute your sincere love and learn how to win others 'heart through appropriate ways.

走出去不是目的，走进去才是我们的目标。

I don't think that everyone should become a mathematician, but I do believe that many students don't give mathematics a real chance.

It is on the strength of observation and reflection that one finds a way. So we must dig and delve unceasingly.