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Relation of virtue with happines in platoʹs ethical system

Classical schools of ethics in general and that of Plato in particular are characterized by Eudemonism.Tne basic doctrine of Euderninism is that manʹs ultimate goal is to attain happiness; and all manʹs activities make sense in the light of this lofty goal. It is usually said that moral virtue paves the way to attain happiness; but relation between the two should be studied closely and in more details. In the present article, to depict relation between virtue and happiness as viewed by Plato, two hypotheses have been presented. According to hypothesis of identity, virtue is considered as identical with happiness; while according to the hypothesis of sufficiency, virtue and happiness are two different things; and acquisition of one of them (virtue) is a preliminary step towards acquisition of the other (happiness). In Platoʹs works, one may find evidence for both of the above hypotheses; but none of them is able by, itself, to explain his view concerning this matter.To understand Platoʹs position in this regard, one has to make a synthesis of the two hypotheses.