我们常常认为幸福是得到我们想要的，但它更多的是关于珍惜我们已有的。

改变令人不适，但停滞是致命的。

The most profound discoveries in mathematics often come from the simplest observations.

"The future is about making a difference."

Success is not about how much money you make, it's about the difference you make in people's lives.

我们开采的每一吨煤炭都承载着对工人、社区和地球的责任。