Sustainability is not an option, it's an obligation to future generations.

With a library you are free, not confined by temporary political climates. It is the most democratic of institutions because no one - but no one at all - can tell you what to read and when and how.

光的理论实际上是弹性介质振动的理论。

一生的特权就是做你自己。

我不是时尚偶像，我是时尚实验。

最重要的思想是那些让我们以新的、更高效的方式利用现有资源的想法。

Energy security is a crucial guarantee for national development. We must intensify technological innovation to enhance the efficiency of oil and gas exploration and production.

过去是一个异国；他们在那里做事的方式不同。