This text critically examines the legitimacy and limitations of specialized sciences that focus on isolated aspects of reality rather than investigating reality as a whole. The author points out that scientific disciplines such as physics, biology, or psychology carve out partial spheres of interest, thereby losing the ability to fully grasp the nature of the "concrete" or true being. The problem arises when a specialized science is confronted with a complex object; for example, physical theory cannot exhaustively explain the behavior of atoms within the context of a living organism, as the broader connections of the whole escape its methodology. The text draws on Leibniz's idea that all natural units of the world possess all qualities, albeit to varying degrees of manifestation. This perspective emphasizes the necessity of viewing beings in their totality and suggests that the reductionism of specialized sciences is methodologically conditioned rather than absolute. The reflection leads toward a philosophical reassessment of the relationship between fragmented scientific knowledge and the holistic nature of reality.