如果你做不到，那就去教别人。

The preservation of the means of knowledge among the lowest ranks is of more importance to the public than all the property of all the rich men in the country.

The future of energy lies in diversification - of sources, technologies, and business models.

The most important room in a house is the space between people.

真正的幸福首先来自于自我享受，其次来自于与少数精选伙伴的友谊和交谈。

Sustainability must be at the core of every decision we make in the coal industry.