I don't regret the things I've done, I regret the things I didn't do when I had the chance.

Coal is not just a commodity, it's a commitment to America's future.

I'm just a girl who loves music and loves to perform.

"I’ve always tried to stay true to myself and my values."

如果没有地幔对流的概念，大陆漂移理论将只是一种猜测。

The work on IVF was driven by the desire to help infertile couples.

Words are, of course, the most powerful drug used by mankind.

I’m not a perfect person, I never claimed to be one.