This study examines the sources of human divergence as arise from Wilhelm Dilthey's writings. While Dilthey assigns a central role to the human subject, he never synthesizes his major ideas on subjectivity into a unified theory of subjective uniqueness. I will show that such a theory can be derived from his writings through the combination of three ideas that appear in them. These ideas are: (1) the thesis that human understanding is possible because of psychological content that is shared by both the creator and the interpreter; (2) the belief that this shared content is the only content that exists within human beings, meaning that there is no unique psychological content; and (3) the perception of this inner universal content as an accumulation of life-possibilities. When joined together, these ideas create an inspiring theory of human divergence, according to which the uniqueness of an individual is determined through partial realization of universal possibilities.