This reflection examines the concept of physis in the work of Zdeněk Kratochvíl, who distinguishes between physis as a whole and individual natures. The author highlights the ambiguous relationship between these two levels and emphasizes that for Kratochvíl, physis is linked to internally integrated change, allowing for discussions on birth and death. Kratochvíl focuses on a philosophy of living nature, whereas non-living nature is viewed as a result of scientific and everyday objectification that reifies nature. A central problem remains the boundary between the natural and the non-natural. The text raises the question of whether nature can be attributed to non-living formations and how to distinguish natural processes from human-caused devastation. Finally, it suggests that to understand human responsibility for environmental degradation, it is necessary to view humans as non-natural beings whose actions transcend simple natural processes. This opens up space for an ethical dimension in the relationship with nature.