Mathematics is the poetry of logical ideas.

The strength of a political system lies in its ability to adapt to changing circumstances and to incorporate new ideas and practices.

真金不怕火炼。

家庭是一个生产和消费商品与服务的小工厂。

数学的美只向更有耐心的追随者展示。

Short-term gains should never compromise long-term sustainability.

生活中唯一的限制是你为自己设定的限制。