I don't think you should ever let anyone tell you what you can and can't do.

The first rule of quality is that it must be defined.

We must learn from nature how to use resources efficiently.

能源效率是我们减少排放过程中默默无闻的英雄。

The history of mathematics is a history of human thought and progress.

I never think of myself as an icon. What is in other people's minds is not in my mind. I just do my thing.

"Happiness is not the absence of problems but the ability to deal with them."