Abstract： There are two basic thinkings for academic research．（1）The thinking of“Analysis”，which is the formal logic reasoning based on some specific assumptions．（2）The thinking of“synthesis”，which is the consilience of the thinking and cognition with different sides．Accordingly，there are also two basic propositions for scientific research．（1）The analyzed proposition derived from the thinking of analysis，which pays attention to the consistency of logic．（2） The comprehensive proposition derived from the thinking of synthesis，which advocates the consistency between theory and reality．Further，on the line of analysis，it will give rise to a completely new conclusion by changing the assumption，and which produces a“revolutionary”doctrine．At the same time，based on a particular perspective and assumptions and ignore others，so this kind theory always is of limitation．On the contrary，on the line of synthesis，the variety theories with different aspects is unified in a framework，and which produces a “compromised”doctrine．At the same time，the different thinking and assumptions usually cannot get unified organically，so this kind theory always is of logical fuzzy．These two kinds of doctrines can be made out in the history of economics theory，such as Smith and Mill’s theories belong to“compromised”doctrine，and Friedman and Lucas’s theories belong to the “revolutionary”doctrine． By distinguishing the characteristics of doctrines，it will help to better understand the theoretical and practical value of two kinds doctrines，and further make a more extensive examination on the current theory．

Key words： Revolutionary Doctrine Compromised Doctrine History of Economic Theory Monetarism Rational expectation

JEL Classification： B41 gB3Hxa2WQkLvbOnxbphProkn6CUk3gOwqPkxTfoTrnFiyrl07WorCaJJy63hjiJr