Tabula Rasa is a philosophical concept that suggests individuals are born as a 'blank slate,' with no innate knowledge or preconceptions, and that all understanding comes from experience and perception. This idea emphasizes the importance of environment and education in shaping human behavior and thought, which aligns with the values of reason and individualism during a period focused on enlightenment, as well as the rise of national identities and revolutionary sentiments fueled by the belief in human potential and societal reform.