This reflection explores the concept of 'fysis' in Zdeněk Kratochvíl's thought, specifically the tension between 'fidelity to fysis' and the rational grasping of the world through paradigms. Kratochvíl argues that fidelity to nature is incompatible with any paradigm and warns that understanding reality through mental models often results in the devastation of both nature and reason itself. The text analyzes the nature of these paradigms and asks whether human reason can function without them without lapsing into irrationality. A central point of the discussion is the meaning of 'devastating fysis.' The author questions whether it is nature itself that is being destroyed or merely our intellectual perception of it. Furthermore, it highlights the risk that treating fysis as something that can be devastated or regenerated inadvertently turns it into a mere object or entity, which contradicts Kratochvíl's own critique. The text calls for a reconsideration of reason as a faithful servant of nature rather than its master through conceptual models.