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.
Security is not a feature, it's a foundation.
天下没有几百年不出现弊端的制度,也没有永远不变的法律。
数据是新的石油,但只有通过分析才能转化为价值。