Marcus tells himself to focus his attention on the minds of wise men, particularly their underlying principles, and carefully consider what these men avoid and what they pursue in life. In The Meditations, he names the philosophers he most admires: Pythagoras, Heraclitus, Socrates, Diogenes the Cynic, Chrysippus, and Epictetus. Of course, you might even choose Marcus himself as a role model if you’re studying his life and philosophy.