The only real failure in life is not to be true to the best one knows.

The only limit to your impact is your imagination and commitment.

Most people are other people. Their thoughts are someone else’s opinions, their lives a mimicry, their passions a quotation.

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

I'm not gonna be one of those people who has to look back and say, 'I should have done that.'

我认为，一个人在青年时期得到如此训练，使身体随时听命于意志，便是受过博雅教育。