Abstract
The article describes the implementation of the diacritical principle in the philosophy of László Tengelyi. It is emphasized that not only the method is diacritical, but also the experience in itself, in the description of which Tengelyi sees the main task of phenomenological philosophy. In doing so, the author presents the main ideas of Tengelyi's last book, paying special attention to such structures of experience as I, the Other and the world. The analysis of the categories of experience and their relation is carried out, for which the Kantian term «consonance» used. However, unlike Kant, Tengelyi shows that consonance permeates all experience. Further, the author, developing Tengelyi's approach, examines in detail the diacritical relation between the I and the Other and such types of diacritically structured experience as love, despair and the consciousness of one's own death.