The study of Marc Aurel’s Meditations offers advice on how to conduct one’s private and public life. The role as advisor or teacher is an important part of his writings, albeit quite indirect. In going back to Book 1 and his acknowledgements of his own advisors, teachers and good examples indicate the motivation and intention to write down his meditations. “People exist for one another. You can instruct, or endure, them” (Book 8, paragraph 59, see also Barrientos 2020). Marc Aurel does not shrug away from the treatment of general concepts of humanity like justice. In his view “… justice entails the exercise of wisdom, kindness, and fairness in our relationships with others both individually and collectively.” This includes already tolerance as a part of justice as in Book 4 paragraph 2, according to Robertson (2020). The idealistic view of humanity, following Platon’s philosophy and other Stoic authors, still serves as a benchmark against which many leaders are measured today (compare Le Monde 2025-9-25 p. 26).