How much time he gains who does not look to see what his neighbour says or does or thinks, but only at what he does himself, to make it just and holy.

Marcus Aurelius (121–180 CE) was a Roman emperor and Stoic philosopher known for his posthumously titled work, Meditations. Assumed to have been written for his own self-improvement, the book examines life experiences through the lens of Stoic principles, which emphasize living virtuously, rationally, simply, and with full responsibility for one’s actions and obligations.