The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

I don't care if you're black, white, straight, bisexual, gay, lesbian, short, tall, fat, skinny, rich or poor. If you're nice to me, I'll be nice to you. Simple as that.

单靠技术无法解决饥饿问题，必须与公平获取和教育相结合。

气候系统异常复杂，我们对它的理解仍在不断发展。

革命是无情的，不仅对那些落后的人，而且对那些跑在前面的人。