人类的历史发展表明，最多样化的种族对我们现在所拥有的文明做出了贡献。
If you love your work, you'll be out there every day trying to do it the best you possibly can, and pretty soon everybody around will catch the passion from you — like a fever.
As a clean energy source, natural gas will play a significant role in China's energy structure adjustment.
The more you know, the more you realize how little you know.
A man is a success if he gets up in the morning and gets to bed at night, and in between he does what he wants to do.
最好的肥料？是农民田间的足迹。