Metaphysics of W. Heisenberg's "Reality and its order"

The article is devoted to the little-known philosophical work of Werner Heisenberg called «Reality and its order». The article provides a linguistic and philosophical analysis of both the title of the work and its main terms, which are important for Heisenberg’s philosophical concept in general. The author emphasizes the connection of Heisenberg’s ontology with the views of ancient Greek philosophers and attempts to correlate these ideas with the latest scientific achievements in the field of quantum mechanics.