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.
过日子就像是上帝在写小说，就让他放开手去写吧。
一幅画应该是通往另一个现实的窗口。
我不相信内疚，我相信冲动地生活，只要你从不故意伤害别人。
Have you given any thought to your future？