A book can be a quiet place in a noisy world.

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。

Persistence is key in mathematical research; many great results come from long struggles.

I prefer to supervise the whole operations of the government myself rather than entrust the public business to subordinates.

光线不断变化，每分钟都在改变事物的氛围和美感。

数学是为不同事物赋予相同名称的艺术。