Eξέταση της χρήσης των λέξεων μῦθος, λόγος, ὅμοιος και ἐπιεικής στην Ποιητική του Αριστοτέλη. Παρουσίαση των τρόπων με τους οποίους ερμηνεύονται οι παραπάνω όροι και προσπάθεια επίλυσης των προβλημάτων που δημιουργεί η χρήση των όρων αυτών μέσα από τη διατύπωση σχετικών παρατηρήσεων. Μελέτη των σχέσεων μεταξύ των ουσιαστικών μῦθος και λόγος καθώς και προσπάθεια διευκρίνισης της σημασίας των επιθέτων ὅμοιος και ἐπιεικής στα κεφάλαια 2, 13 και 15 της Ποιητικής με βάση τη σύγκριση μεταξύ ζωγραφικής και ποίησης. / In the present study, we examine, to a greater or lesser extent, the terms mythos, logos, homoios and epieikēs as used in Aristotle’s Poetics. The aim of this short survey is primarily to present several interpretations of what Aristotle means by mythos, logos, homoios and epieikēs, proposed by some scholars, before attempting to solve the problems which the use of the aforementioned terms causes by making a few relevant remarks. Regarding the first two terms mentioned above, we inquire into the relationship between these terms as well as the relationship between the concepts which are signified by them, while, concerning the terms homoios and epieikēs, we mainly attempt to clarify the meaning of these particular adjectives in chapters 2, 13 and 15 of the Poetics, taking into account the comparison of poetry to painting, made in some interesting passages of the treatise. Our approach to the core of the problem is based, in any case, on the Aristotelian belief that, as regards the scientific thought, it is essential that one should perceive the similarities of things, which, however, differ much from each other.