It is the preoccupation with possessions， more than anything else， that prevents us from living freely and nobly.

I don't let the past hold me back. I let it propel me forward.

朗兰兹纲领是对数学如何统一的一种愿景。

Coal isn't the problem - how we use it is. The solution lies in cleaner technologies and better utilization.

英国的未来是光明的，但我们必须共同努力才能实现它。

自主创新不是闭门造车，而是在开放合作中掌握核心技术。