This text examines the relationship between an object and its concept, emphasizing that conceptualization does not necessarily require prior sensory perception. The author distinguishes between the concept as a component of the mental act (the conceiving concept) and the concept as a distinct entity (the conceived concept), which can be viewed as a special kind of thing. Although defining the intrinsic properties of a concept independently of its subject remains challenging, its significance lies in its ability to relate to other concepts. These relationships are autonomous and do not strictly depend on how the physical objects themselves interact. Working with concepts is essential for complex thinking and logical operations that would otherwise be impossible through mere perception or memory. The text further notes that the ability to handle concepts is an acquired skill, learned from others and refined through education from an early age. This conceptual competence forms the foundation of human intellectual development, enabling advanced cognitive processes that transcend immediate experience.