I propose a discussion on my text "Kinds of Unity of the Soul in Plato". The article was published in "Philosophical Meditations" (Department of Philosophy, Faculty of Humanities, University of Zanjan, University Blvd., Zanjan, Iran. Postal Code: 45371-38791). I should very much like to thank all the members of the Editorial Board of Philosophical Meditations for accepting my text. The article can be found at the following web address: https://phm.znu.ac.ir/article_726579.html?lang=en In my study, I investigate aspects of Plato’s analysis of the kinds of unity of the individual soul. The text to which I shall refer to my essay is Plato’s Republic. Throughout Plato’s Republic, the soul is represented as a composite entity. Since any soul is composed of different parts, namely the rational part, the spirited part and the appetitive part, the soul can have different developments. On the one hand, the parts of the soul are given; on the other hand, the development of the parts of the soul is not given but depends on education and on the influence exercised by society. Thus, the kinds of unity of the individual soul can be different from each other depending on the part of the soul which leads the whole soul. Only the unity produced by the rational part corresponds to a morally healthy condition of the soul, whereas the prevalence of the other parts brings about unhealthy conditions of the soul.