Matter and mind: Lviv, Printed by the author, 1934, 14 p.

The work presents Havryiil Kostelnyk's arguments against the materialistic worldview, which interprets the world in mechanistic and atheistic categories. The author analyzes the positions of various representatives of materialism, demonstrating the internal inconsistency of their explanations of the origin of life and the human mind. Ultimately, Kostelnyk substantiates the thesis of the teleological orderliness of natural phenomena, drawing on the achievements of contemporary natural sciences—chemistry, biology, and astronomy.