The proposed work of the famous German philosopher is quite suitable for the role of a business card of a thinker. It marks the beginning of the development of his work, while maintaining a distance from the earliest works, was reprinted more than once and found life abroad. In relation to the existential philosophy of O. F. Bolnov appears as a systematizer, as a modernizer, and as a "dedicated", who does not want to "regress to objectivism far from life" and claims that "the final unity comes from the plane of the existential" .. For whom is the work intended? First of all, we are talking, of course, about the university environment and scientists . This edition, albeit with a little delay, is addressed to all those who are specifically interested in existential philosophy and will not deny themselves the pleasure of familiarizing themselves with the interpretation of its key concepts in this translation. along with this, this essay can find a wide response in the student audience and in all those , who strives to understand the conceptual constructions of this well-known philosophy - due to the systematic nature Compression , Intelligibility it can be perceived as a textbook on one of the sections of Western European thought of the XX century.