Abstract: Could conservative ideology be considered rational since for many researchers the question of the rational in the philosophy of the first conservative Edmund Burke does not arise in principle due to the fact that the thinker is perceived as a traditionalist? How do Burke's ideas correlate with the rationality of the classical Enlightenment type? Could the first conservative really be a non-rationalist, if he lived and worked in a time when the mind was actually the only constant in social and political thought? In this article the author considers all the above questions and provides his own interpretation. He applied the historical and value-normative research methods when working on the article. The author used a comparative analysis of emerging conservatism and liberal ideology to clarify and define the conservative ideas. The main conclusion of the article lies in evidence of rationality of classical conservatism. The author claims that rationality of Edmund Burke is based on a different type of perception of political reality. The article explores the concepts of reason and tradition, experiment and experience. Burke was the first to prove the possibility of coexistence of tradition and reason in the same political field defending the principles of heredity, continuity, and traditionalism. 

Abstract: This article considers the insufficiently studied problem of the rational in political ideologies. The author provides definitions to the notions of rational and ideology in political discourse, as well as meticulously examines the problem of rational in the originated liberal, social and conservative concepts. The timeframe covered in the research includes the end of the XVIII – beginning of the XIX centuries. The author is convinced that the problem of rationality is one of the crucial and simultaneously the most unexplored aspects of study of the political ideologies. Thus, it necessitate the development of critical view upon the comprehension of rational in political ideologies. The article conducts a comparative analysis of the rational in ideologies of liberalism, conservatism, and socialism of the indicated period. The main conclusion consist in the proof that all of the political ideologies in their essence are rational. But it worth emphasizing that the liberal and social concepts were built within the framework of classical type of rationality, unlike the evolvement of conservative ideology.