In the fundamental work of Theocharius Kessidi (first edition: M., 1972), for the first time in world philosophical literature, the experience of revealing the "mechanism" of the transition from myth to logos (reason) was undertaken: from mythological identification (imaginary and real) to artistic comparison and from theogonic poetry to the search for the beginning of things. The formation of conceptual thinking and the discovery by the ancient Greeks of "pure reason" gave rise to the famous aporias of Zeno of Elea, which cause lively discussions among scientists to this day. Without modernizing antiquity, the author originally connects antiquity with modernity. The book is written in a living language, read with unrelenting interest. The works of Professor F. Kessidi, a member of the Athens Academy of Sciences, were published in 15 languages ​ ​ of the world.