The best quarries don't just extract value; they create it through regeneration.

真相并不总是我们想听到的，但它总是我们需要知道的。

The future of life on Earth depends on our ability to take action. Many individuals are doing what they can, but real success can only come if there is a change in our societies and our economics and in our politics.

朗兰兹纲领证明了数学抽象之美。