Life lessons will be presented to you in the order they are needed. Everything you need to master the lesson is within you. Once you have truly learned a lesson， you will be presented with the next one. If you are alive， that means you still have lessons to learn.
Sustainability isn't an option; it's a necessity for the future of our industry.
我永远不想回头看时说我可以做得更多。
成功不是幸福的关键。幸福才是成功的关键。如果你热爱你所做的事情，你就会成功。
Coal isn't the problem - how we use it is. The solution lies in cleaner technologies and better utilization.