In this episode of Practical Stoicism, I unpack Meditations 4.4, where Marcus Aurelius reflects on the shared nature of human reason and its connection to a universal law. While Marcus builds a case for a kind of Stoic cosmopolitanism—where all rational beings are part of one commonwealth—I explore how this can inform our understanding of decentralized morality and Natural Law. I also contrast Stoic justice with religious or centralized legal frameworks, and explain why Stoicism’s moral reasoning demands more personal responsibility and attentiveness to context. Later in the episode, I answer a listener question about standing for justice in a polarized world. I argue that recognizing our limitations is a crucial part of ethical living. We can’t do everything, and pretending otherwise often causes more harm than good. Justice, from a Stoic perspective, begins with self-awareness and grows outward, rooted in reason and tempered by our roles and capacities. Meditations 4.4 If mind is common to us all, then also the reason, whereby we are reasoning beings, is common… and thence, from this common City, is derived our mind itself, our reason and our sense of law, or from what else? THREE TAKEAWAYS — Stoic justice is grounded in Natural Law, not dogma or divine command. — We must reason within our roles and limits, not pretend to be omnipotent. — Our shared reason connects us to a universal moral framework—but that framework still depends on individual effort and context. Join the Practical Stoicism community, the Society of Stoics, at https://community.stoicismpod.com. Members enjoy ad-free episodes, weekly journaling prompts, a membership medallion, and access to regular live calls and discussions. Join today at https://community.stoicismpod.com. Buy my book: https://stoicismpod.com/book Read source material: https://stoicismpod.com/far Subscribe on YouTube: https://stoicismpod.com/youtube Follow me on Bluesky: https://stoicismpod.com/bluesky Learn more about your ad choices. Visit megaphone.fm/adchoices