No matter who you are, no matter what you did, no matter where you've come from, you can always change, become a better version of yourself.

The center of our galaxy is a fascinating place where extreme physics takes place, and it's a privilege to study it.

我一直更喜欢研究具体问题而非抽象理论。

伟大的事业通常是在巨大的风险中完成的。