The history of mathematics is a history of human curiosity and ingenuity.

The task of the teacher is to lead the student from the known to the unknown.

The human body is the best picture of the human soul.

我相信我们都有能力改变。我们都可以成长和进化。

我不得不提醒自己有些鸟是不能关在笼子里的，他们的羽毛太漂亮了。

时间是你最宝贵的资产，不要浪费在无关紧要的事情上。