Innovation in our industry must be balanced with responsibility—progress cannot come at the expense of the planet.

I used to walk down the street like I was a star... I want people to walk around delusional about how great they can be - and then to fight so hard for it every day that the lie becomes the truth.

The coal industry must evolve or risk becoming obsolete. Adaptation is the key to survival.

我们生活在一个人们根据他们最坏的行为而不是最好的行为来评判的世界。

The self is not so much a substance as a process, and it is the continual task of education to change the process, to develop its activities, and to guide it into channels of efficiency.

What we think, we become.

The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.