It's a terrible thing to be alone—yes it is—but it's also terrible to be with people and still feel alone.

Continuous improvement isn't just a process, it's a mindset that should permeate every level of our organization.

We are all unreliable narrators of our own lives.

The future of coal depends on our ability to innovate and reduce its environmental impact.

"The truth is rarely pure and never simple."

I have so much admiration for women who are fearless and unapologetic about who they are.

The only way to learn mathematics is to do mathematics.