The article presents the genesis of the concept of reflection. The prerequisites for the formation of this concept in the works of Aristotle and Nicholas of Cusa and the actual stages of development of this concept in the philosophy of modern times differ. The concepts of reflection 1.0 are characterized in the works of Locke, 2.0 in the works of thinkers of German classical philosophy (Kant and Hegel), 3.0 in the research of G. P. Shchedrovitsky. Two understandings of reflection are separated: understood as a mechanism of development of the individual, belonging to his personality, and as a process leading to another integrity. The idea of moral reflection is introduced.