经济发展理论研究的是经济系统如何产生不断改变它的力量。
The theory of economic development is the study of how the economic system generates the forces which incessantly transform it.
最好的故事是那些为读者想象力留出空间的故事。
最伟大的发现来自于提出最简单的问题。
The ultimate competition in the future will be the competition of user experience.