Marcus Aurelius Antoninus (121–180 CE) was the last of the Five Good Emperors of Rome—and the most powerful person of his time. Written in Greek, Marcus Aurelius collected his thoughts on virtue, rationality, gods, leadership, and many other topics in his personal notebook. He never intended to publish them, it was a daily reminder for his own guidance and self-improvement. But yet this collection, published after the end of his life as Meditations, became one of the most important Stoic texts of all time, helping many people to fight their inner struggle.