This text presents a profound analysis of the nature and structure of the concept, focusing on the distinction between the mere "concept of a concept" and the actual, "real" concept. The author reflects on the historical evolution of how this phenomenon is understood, critically engaging with past interpretations such as those of Kant and Hegel, which often conflated the concept with reason itself. A central theme is the investigation of the inherent one-sidedness of traditional European conceptual thinking, rooted in ancient Greek philosophy. The text questions whether this one-sidedness is an inevitable trait of all conceptual thought or if it characterizes only a specific historical type. It proposes the necessity of developing a new form of conceptualization to overcome existing limitations. According to the author, the path toward this new way of thinking requires a deep and penetrating insight into the nature of the "old" thinking we still inhabit. This philosophical inquiry serves as a call to redefine the tools of human cognition and seek a more comprehensive understanding of rationality within the European intellectual tradition.