Abstract: The article is devoted to the 100th anniversary of the Institute of Philosophy of the Russian Academy of Sciences (IPhRAS), held in 2021. The purpose of the article is to give an overview of IPhRAS's contribution to the study of Aristotle's ethics within the framework of domestic Aristotelian studies, to note the main works of IPhRAS employees in this field. The material of the article is aimed not only at summing up the results to a significant date, but can be used as an auxiliary reference point in the domestic research literature by all those interested in the ethics of Aristotle. The article examines the articles and monographs of IPhRAS employees, makes brief descriptions of the most significant ideas expressed in them, analyzes the general process of development of Aristotle's ethics research in IPhRAS. The result of the conducted research is the identification of two directions in the study of Aristotle's ethics by IPhRAS employees – philosophical-theoretical and historical-philosophical. Within the framework of the first direction, two types are also distinguished: those aimed at the theoretical reconstruction of Aristotle's teaching on morality itself and those that turn to Aristotle's works in search of modern significant concepts. The second direction is represented by translation work, structural and comparative analysis of Aristotle's texts in order to reproduce them as accurately as possible and clarify individual concepts and statements. The main conclusion of the study is the statement that IPhRAS has not yet developed a holistic school in the approach to the study of Aristotle's ethics, and also that the two discovered areas of research are being implemented separately from each other. However, in both directions, researchers proceed largely from the analysis of the philosophical language of the Stagirite, which makes not only historical and philosophical works significant for philosophical and theoretical ones, but also vice versa. Also, despite a relatively short history, the study of Aristotle's ethics at IPhRAS has a systematic nature, all generations of employees are involved in it, which promises its further successful development.

Abstract: The object of this research is Plato’s dialogue “The Republic”; the subject is the practical component of Plato’s ethical doctrine in form that it presented in this dialogue. The author sets the goal to determine the specificity of sociocultural practices generated by the moral theory of Plato; and for this purpose examines the practice of deception that is expressed in this dialogue in the most distinguish and gradual way. It is determined what type of problems are solved by Plato through the practice of deception, and what kind of problems it can lead to. Based on the analysis of application of the notion of “lie”, the author reconstructs the concept of deception in text of the dialogue “The Republic”. The scientific novelty lies in providing a holistic and structured reconstruction of the concept of deception in Plato’s ethical doctrine (dialogue “The Republic”) in its relation to the anthropological and ontological problematic. A conclusion is made that the designed by Plato arrangement order of the life of polis leads to sociocultural gaps between the three types of citizens, disintegration of polis; and such gaps must be overcome, according to Plato, by the practice of deception aimed at formation of certain worldview. However, gradual reconstruction of such practice described by Plato demonstrates that the problem of sociocultural gaps only enhances, and moreover – it leads to disruption of moral foundations of life of the polis.