The only thing that keeps me going is that I love what I do.

I don't care about being remembered as the most famous person in the world. I want to be remembered as the most fearless.

保护我远离我想要的。

唯一能控制的是你的努力。

未来属于那些拥抱变化的人。

A mathematician's intuition is as important as rigorous proof.

"The freedom to be yourself is a gift only you can give yourself. But once you do, no one can take it away."

My job as a leader is to make sure everybody in the company has great opportunities, and that they feel they’re having a meaningful impact and are contributing to the good of society.

The war on coal is a war on the American worker.