And I hope you will come back here to Harvard 30 years from now and reflect on what you have done with your talent and your energy. I hope you will judge yourselves not on your professional accomplishments alone, but also on how well you have addressed the world's deepest inequities…on how well you treated people a world away who have nothing in common with you but their humanity.

The more you know, the less you need.

The way we perceive the world is heavily influenced by our past experiences and the cognitive biases that come with them.

在浩瀚的宇宙中，我们的问题显得渺小，但我们理解的潜力是无限的。

Every problem in NP can be reduced to the satisfiability problem, which is the cornerstone of computational complexity theory.