In mathematics, the simplest questions often lead to the most profound discoveries.

The great challenge of the modern world is to create institutions that are strong enough to govern effectively but also accountable and responsive to the needs of citizens.

每一种语言都是思想的古老森林。

精神的火焰在孤独中燃烧得最明亮。

绝不能为了速度或成本而牺牲质量。