The book attempts to reconstruct the content of the holistic Hegelian concept of subjectivity, the systematically expressed theory associated with it. A theory that plays a central role in Hegel's philosophical system. We are talking about such an understanding of subjectivity, which, being formulated as a principle of logic, then - through its self-development - is filled with effective content and unfolds itself as a fundamental foundation and substantive center of the philosophical system of the world.