数学家的模式,就像画家或诗人的模式一样,必须是美丽的;思想,就像颜色或文字一样,必须以和谐的方式结合在一起。
The health of our oceans is the health of our future.
I've always been drawn to characters who are complex and have depth.
The only person you are destined to become is the person you decide to be.
经济转型的成功取决于正式制度与非正式制度的兼容性。