EN
The paper presents Kotarbinski's views on finality and contingency of human life. The author tries to relate Kotarbinski's philosophical arguments to his personal preferences and opinions in order to offer a better understanding of his idea of 'secular ethics'. The main finding reported in the paper is that Kotarbinski wanted to adopt a position that was thoroughly rational. Consequently he strived to emphasize the importance of human sense of life and the need for a broad conception of liberty.