The advancement of mathematics is through generalization.
数学的进步是通过概括实现的。
Global energy markets require cooperation, not confrontation.
All men have the stars, but they are not the same things for different people. For some, who are travelers, the stars are guides. For others they are no more than little lights in the sky. For others, who are scholars, they are problems. For my businessman they were wealth.
Failure is simply the universe's way of teaching you what not to do next time.
