The characteristics of complicated modern society may be treated similar to those of liquids, and the treatment might promise a new paradigm for a better world, whch is called social thermodynamics. Introducing so called Roulette liquid model, the general system theory and thermodynamics will be reviewed briefly. With the concepts of simple types of structure units, the compi cated society could be analyzed and explained guite successfully to suppart Dr. Freld's comparative political theory. In conclusion, it seems significant that scientific concepts as well as scientific approach are applied to solve the interdisciplinary problems, especially to the topics in social sciences.