"Children's books should be both a mirror and a window."

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

内心守静而不生差错，不让外物扰乱五官，不让五官扰乱内心，这就叫做心中有所得。

Rien de plus cher que la chanson grise / Où l’Indécis au Précis se joint.

互联网的本质是连接，连接人与信息，连接人与服务，连接人与人。