True sustainability means leaving the land better than we found it for future generations.

Chemistry is the science of matter, but I prefer to see it as the science of change.

There are no vital and significant forms of art; there is only art, and precious little of that.

The coal industry has a critical role to play in providing affordable and reliable energy while we transition to a lower-carbon future.

A failure is not always a mistake, it may simply be the best one can do under the circumstances. The real mistake is to stop trying.

Design is not just what it looks like and feels like. Design is how it works.