摘要: The well-known distinction between soft and hard science cuts a sharp line of demarcation facts scientific studies. Physics deal with precise characteristically whereas social sciences are confronted imprecise because notoriously vague, interpretative meaning. Therefore Fuzzy logic seems to fit perfectly the needs scientist that look for mathematical models data [52]. In this contribution we discuss usefulness in general, especially sociology. first step summarize some fundamentals “fuzzy thinking” [10] scientist. This will lead discussion need fuzzy thinking action theory, systems modernization theory empirical research. We advantage at length research falls short. Modernization just function as further examples thinking.