分析和代数之间的相互作用是数论中许多突破的驱动力。

I'm not a legend, I'm just a man who sings.

数学的研究对科学的发展就像空气或水一样。

Oil and gas will remain part of the energy mix for decades to come, but we must produce them as cleanly as possible.

种树的最佳时间是20年前，次佳时间是现在。