我是一个美国黑人，我为我的种族感到骄傲。我为自己是谁感到骄傲。我有许多自豪和尊严。
I'm a black American, I am proud of my race. I am proud of who I am. I have a lot of pride and dignity.
If we find the answer to why the universe exists, it would be the ultimate triumph of human reason – for then we would know the mind of God.
明智的人会将自己的信仰与证据相协调。
I think it's possible for ordinary people to choose to be extraordinary.
Development economics is ultimately about improving people's lives.
软件系统最重要的方面是它满足用户需求的能力。
We need to understand the brain to build better AI.