As part of my studies at the  Marcus Aurelius School for Stoic Philosophy,  I made a series of three paintings about human moral development, starting with a baby (Tabula Rasa or blank sheet), then a man (Prokopton or Stoic student), and the third one is Sophos, the sage. This last one is something that most Stoics hold to be an unattainable ideal of perfection, but worth striving for anyway.

Link to the Marcus Aurelius School: collegeofstoicphilosophers.org