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5 Stoic Principles That Changed How I Lead

Hamdi Ben JarrarMarch 26, 202612 min read

Leadership in the modern world is chaotic. I've seen it firsthand — in Tunisia, in startups, in organizations drowning in complexity. People are desperate for clarity, yet most leaders deliver noise. They react instead of act. They blame circumstances instead of examining their own judgment. They build empires of ego instead of systems of meaning.

Ten years ago, I was one of them. I was fast, ambitious, and fundamentally lost. I believed that being a good leader meant having all the answers. Then I read Marcus Aurelius. Not just read — *studied*. And everything changed.

What I discovered was this: the Stoics didn't write for philosophers in ivory towers. They wrote for people in power. Marcus was the most powerful man in Rome. Epictetus was enslaved. Yet they reached the same conclusions about how to lead with clarity, ethics, and purpose. Their principles are not ancient wisdom — they are a blueprint for leadership that actually works.

1. Separate What You Control From What You Don't

This is the foundation of Stoic thought, and it's the first thing I teach every team member at MYNTHISM. Marcus called it "the dichotomy of control." The idea is deceptively simple: you control your judgment, your effort, your intention, and your response. You do not control the market, your competition, other people's opinions, or outcomes.

Most leaders spend 90% of their energy obsessing over what they can't control. They attend endless meetings about market trends. They agonize over what competitors are doing. They check social media metrics like their life depends on it. This is not leadership — it's anxiety with authority.

Real leadership begins when you stop. You accept what you cannot control. You acknowledge it, understand it, and then you redirect all your energy to what you actually command: your decisions, your preparation, your character, and your response when things inevitably don't go as planned.

At MYNTHISM, this changed everything. We stopped obsessing over going viral. Instead, we focused on creating content that was genuinely useful, well-crafted, and rooted in real philosophy. We couldn't control whether someone shared it. We could control whether it was worth sharing. And paradoxically, that shift in focus led to better engagement, better community, and better outcomes — because we were operating with integrity instead of desperation.

Ask yourself: What am I spending energy on that I don't actually control? What would shift if I stopped?

2. Discipline Your Judgment Before You Lead Anyone

This is where I failed for years. I thought leadership was about charisma, decisiveness, and momentum. I led from impulse. I made snap judgments. I believed that moving fast was the same as moving right.

Marcus teaches something different. He says that before you lead others, you must first master your own mind. Your judgment — the quality of your thinking — is the only lever you actually have. If your judgment is poor, everything downstream is compromised. If it's sound, even your mistakes become learning.

Stoic discipline doesn't mean being rigid or mechanical. It means building systems for thinking clearly. For me, this looked like: reading before deciding, seeking counsel before responding, writing to clarify my thinking, and most importantly, building in a pause between stimulus and response. Viktor Frankl called this "the last of human freedoms" — and it's true. In that gap lies your power as a leader.

I now spend 30 minutes every morning reading philosophy, not because I'm pious, but because it sharpens my judgment. When someone brings me a problem, I don't react instantly. I ask questions. I think. I separate my ego from the issue. The quality of my leadership is the direct result of the quality of my thinking.

Practice: For one week, commit to a 30-minute pause before any major decision. Read, write, think, seek perspective. Notice how your judgment shifts.

3. Embrace Discomfort As Growth

Tunisia was not an easy place to be ambitious. Resources were scarce. Leadership models were often extractive. Skepticism about young leaders was deep. For years, I saw these constraints as obstacles to overcome. I resented them. I wanted easier circumstances so I could lead better.

Then Seneca's words hit me: "Difficulties strengthen the mind, as labor does the body." The constraints weren't obstacles — they were *training*. Every challenge was an opportunity to develop wisdom, resilience, and creativity. The scarcity forced us to be efficient. The skepticism forced us to prove ourselves through results. The resistance forced us to think differently.

This shift in perspective changed everything. I stopped complaining about what I didn't have. I started building with what I did. And here's the truth that took me years to understand: the most innovative, most resilient leaders come from constrained environments. They have to be creative because they have no other choice. They have to be disciplined because waste is visible. They have to be principled because shortcuts don't work at scale.

At MYNTHISM, when resources are tight, we don't lower our standards — we raise our thinking. When we face resistance, we see it as an invitation to refine our approach. Discomfort is not a sign we're doing something wrong. It's a sign we're growing.

Reflection: What discomfort are you running from in your leadership? What if it's exactly what you need to develop?

4. Your Virtue Is Your Only True Asset

In the chaos of building, it's easy to compromise. You compromise on your word because speed seems more important. You compromise on ethics because the market seems to reward it. You compromise on people because you're desperate for results. And slowly, you realize you've built something hollow.

This is where most modern leadership fails. We've been taught that the goal is success — money, status, scale. But Marcus was clear: if you sacrifice your integrity to achieve those things, you've lost the only thing that actually mattered. Your character is your only true wealth.

I learned this the hard way. Early in my career, I made decisions I regret — cutting corners, overpromising, prioritizing growth over people. The wins felt hollow. The success felt like debt. Because it was. I owed these people better than what I gave them, and that debt stayed with me.

With MYNTHISM, I made a different choice. Every decision runs through this filter: Does this align with what we actually believe? Would we be proud to defend this choice publicly? Does this serve the people we're building for, or does it exploit them? This doesn't mean we're slow or naive. It means we're deliberate. And it means that when we win, the victory is clean. It belongs to us. No asterisks, no regrets, no moral debt.

When you lead from virtue, people trust you differently. They work harder for you. They believe in the mission. And more importantly, you can look at yourself in the mirror without wincing.

Assessment: In your leadership decisions this week, have you compromised your ethics for speed or results? What would it look like to choose differently?

5. The Goal Is Excellence, Not Perfection

This is the most liberating principle of all. Marcus didn't demand perfection — he demanded that you try. He acknowledged that failure is inevitable. Mistakes will happen. What matters is that you're relentlessly committed to improvement. That you're showing up. That you're thinking clearly and acting with integrity, even when — especially when — things are difficult.

Too many leaders are paralyzed by perfectionism. They don't ship because it's not perfect. They don't lead because they don't have all the answers. They don't try because they might fail. And in their paralysis, they guarantee their irrelevance.

Stoicism teaches a different way. You show up. You do your best with the information you have. You learn from mistakes. You adjust. You try again. The goal is not to be flawless — the goal is to be *excellent*. To be constantly reaching toward a higher standard while accepting that you'll never fully arrive.

This is what drives MYNTHISM. We ship constantly. Our first version of the AI Council wasn't perfect. But it was real, and it helped people. We've refined it. We'll refine it again. We're not waiting for the perfect moment — we're building it. And in the building, we discover what excellence actually looks like.

Action: What are you not shipping, not trying, not building because you're waiting for it to be perfect? Ship it. Let the market tell you what matters.

The Integration

These five principles don't exist in isolation. They form a coherent philosophy of leadership that transforms how you think about power, responsibility, and purpose. When you understand what you control, you can discipline your judgment. When you embrace discomfort, you grow. When you anchor yourself in virtue, you build systems that matter. And when you release your obsession with perfection, you can actually achieve excellence.

The Stoics understood something that modern leadership has largely forgotten: the best leader is not the one who has figured it all out. The best leader is the one who is genuinely committed to thinking clearly, acting virtuously, and getting better every single day. That's what we're building at MYNTHISM. That's what I'm practicing in my own leadership. And that's what I believe Tunisia's next generation needs.

Leadership is not about having power over others. It's about having mastery over yourself. Everything else flows from that.

— Hamdi Ben Jarrar, Tunis, March 2026

Hamdi Ben Jarrar

Full-stack developer, philosopher, and founder of MYNTHISM. Building the 8-Agent AI Council to educate Tunisia's next generation.