投资清洁煤炭技术不是开支，而是对我们未来的投资。

I'm very passionate about what I do, and I think that's important.

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.

Light is the most important material in architecture.

We are like travelers who have lost their way； we must ask， each one， for directions from a passerby.

你活得越久，学得越多。学得越多，就越意识到自己知道的多么少。

Creativity is not a talent, it's a way of operating.

数学的本质在于它的自由。

The road to success is always under construction.

最重要的是享受你的生活——要快乐——这才是最重要的。