Why study economics?

在萨缪尔森《经济学》的introduction中，他写道：
As you begin your studies, you probably wondering, Why study economics? In fact, People do it for a number of reasons.

Many study economics because they hope to make money.

Some people worry that they will be considered illustrate if they cannot understand the laws of supply and demand.

Others are interested in learning about how computers and the information revolution are shaping our society or why inequality in the distribution of income in the United States has risen in shapely in recent years.

这段话也许改变了我。