我们需要经验性社会研究的技巧，原因甚多，其中特别重要的一条是各国之间在对此的接受程度上差别甚大。各个学科之间的合作、方法论上的争论、一代代社会科学家和一代代科学研究机构之间的差异──凡此等等都是重要的，都必须加以强调。作为我本人的出发点，我将论述在美国如 There are many reasons why we need the skills of empirical social research. One of the most important ones is that there is a great difference between countries in their acceptance of this. Differences between disciplines, methodological arguments, generations of social scientists and generations of scientific research institutions - all of which are important and must be emphasized. As my starting point, I will discuss in the United States as