Seneca Was a Billionaire Stoic. These Are His Rules For Your Best Life

The wisdom he figured out to never waste a day.

Photo by Daniel Silva on Unsplash

Lucius Annaeus Seneca was worth roughly 300 million sesterces. In today’s money, that’s close to $400 million. He was one of the richest people in the roman empire. To put this into perspective, the average roman senator had a net worth of about 5 million sesterces. He owned estates, managed massive loans. And was a political advisor to the emperor Nero. Seneca was also a stoic philosopher. That is a fascinating contradiction. He didn’t pretend wealth was evil. Or made him happy. He used it, enjoyed it, worried about it. And then wrote about life and meaning more than almost anyone else in history. He understood both worlds. The philosophy and the bank account. That combination makes him unusually useful.

Most Stoic writers were poor. Epictetus was a former slave. Marcus Aurelius was an emperor but was famously drained by power. Seneca was a man who chose philosophy after achieving wealth. Who sat inside a golden life and still asked whether any of it was important. He tried imperfectly to live well. These are his life rules.

Time is the only thing that belongs to you

“Everything, Lucilius, belongs to others. Time alone is ours.”

Protect it like you do your money.

Seneca opens his famous essay, *On the Shortness of Life*, with this. “It is not that we have a short time to live, but that we waste a great deal of it.” Seneca wisely said we are incredibly protective with our money, but reckless with our time. When people walk into our lives and steal our time, we let them have it for free. Seneca wants you to treat your time like a finite bank account. Every time you say “yes” to a useless obligation, you are writing a check from your life expectancy. If you measure how much time you spend worrying about things that didn’t happen, sitting in meetings that solved nothing, or saying yes to things you didn’t want to do, how much of your time went down the drain?

Are you there for your hours, or are you letting them slide past you while your attention is somewhere else? Seneca had a term for it: dissipation. The slow process of wasting time. Or the one-way asymmetry of time you can’t get back. He watched rich men who never had a free hour. And powerful politicians so consumed by ambition that they could live to enjoy life.

He wrote:

“People are frugal in guarding their personal property; but as soon as it comes to squandering time they are most wasteful of the one thing in which it is right to be stingy.”

The math he’s doing is this.

You guard your money carefully. You’d notice if someone stole your wallet. But hours, days, years. Those you give away without thinking. His antidote was to notice. To reclaim even part of your day as yours to lose. To stop letting other people’s urgencies crowd out your own life.

Stop living in the future

“The greatest impediment to living is expectancy, which relies on tomorrow and wastes today. You map out what is in fortune’s hand but let slip what’s in your own hand.”

Seneca figured out anxious people are almost never in the present. They’re either replaying the past or rehearsing disasters of the future. The word he used was trepidatio. The trembling anticipation of the future that ruins the present. “All that’s to come lies in uncertainty: live right now,” he said.

He wrote to his friend Lucilius:

“There are more things, Lucilius, likely to frighten us than there are to crush us; we suffer more often in imagination than in reality.”

It’s a practical observation about where mental energy goes. The mental suffering of things likely to go wrong. The presentation, a difficult conversation, that medical result or the business meeting are entirely in the anticipation. Seneca wants us to distinguish between useful preparation and useless dread. One leads to action. The other just burns you out before the thing even happens. Come back to what is, not what might be. What is in front of you right now, today, in this hour?

Deal with that. The catastrophe you’re rehearsing probably won’t come. And if it does, you’ll handle it then, with the knowledge right now, not in advance, using energy you need now.

Choose your company with ruthless care

“Associate with people who are likely to improve you. Welcome those whom you yourself can improve. The process is a mutual one: men learn as they teach.”

“Avoid the crowd, avoid the few, avoid even the individual. I know of no one with whom I would be willing to have you consort,” he wrote. Seneca thought people were contagious. It applies to moods, habits, standards, values, ambitions or their ways of thinking about what matters. Spend a lot of time with people who complain. And you will start finding things to moan about. The same goes for people who treat others as obstacles.

He’d seen it too many times.

He’d seen it too many times:

“Frankly, I always return home with a character more damaged than when I left… The companion of our leisure, if he be luxurious, rubs off some of his softness upon us.”

You absorb the standards of those around you. If everyone in your circle talks about money as the only measure of a good life, you will unconsciously believe that to be the only reality for living well. You are the sum of your five closest connections. Now, do their habits, attitudes, and values make you a better person? “Retire into yourself as much as you can; associate with those who will make a better man of you,” he once said.

Wealth is a test of character

“Look at those whose prosperity draws crowds: they are choked by their own goods. How many have found their wealth a burden!”

Seneca was rich. And he knew the many ways money could deform you. He thought wealth reveals you. It amplifies who you already are. If you were anxious before you got it. Money makes you more anxious. If you were generous before. Money gives you more to be generous with. If you needed external validation, money just gives you more expensive ways to seek it. The failure mode he saw around him was acquisition without satisfaction. People who thought they needed one more thing to finally feel secure.

They never got there.

“He who aligns himself with nature’s boundaries will never feel poor; he who exceeds them will never feel rich,” he says. His test for a healthy relationship with money was this. Could you lose it and be okay? Could you live without any particular item of luxury and still recognise yourself?

The biggest tragedy of forgetting to live

“How late it is to begin living just when life must come to an end! What foolish obliviousness to our mortality to put off wise plans to our fiftieth and sixtieth year…”

Seneca meant this as a focusing tool.

If you faced your own mortality, most of the petty dramas of daily life would rearrange themselves instantly. The grudge that seemed so important. The status competition that consumed your week. The worry about what someone thought of you. All of it would shrink. And all the things that matter. The conversation you keep postponing with someone you love. The work you keep saying you’ll do “when things are less busy.” The life you keep saying you’ll live “when you’re ready.”

Those experiences would move to the front.

“True happiness is to enjoy the present, without anxious dependence upon the future,” he said. Seneca applied the wisdom of the shortness of time to create the right urgency (aimed at the right things) to live now. He wrote to Lucilius near the end of his own life, “Let us say what we feel, and feel what we say; let speech harmonise with life.” Seneca was executed by Nero in 65 AD. He was forced to take his own life. His final hours, by multiple accounts, were calm. He talked to his friends. He reminded them of what he’d spent his life trying to teach.

Activity is not achievement

“There is nothing so ruinous to good character as sitting away one’s time at a show — for it is then, through the medium of entertainment, that vices creep into one with more than usual ease.”

Seneca was brutal about being busy for nothing meaningful. He saw it as a way of avoiding the question of what you want. He was against passive pleasure that costs you your mind. Against socialising that leaves you emptier than before. And the dinner parties where you come back home feeling nothing. Rome had entertainment obsessions. The games, the baths, the theatre, and gossip networks.

What we have is social algorithms.

The infinite feed. The content we consume, because stopping feels harder than continuing. We jump from podcast to article, from book to video, hoping to absorb it all. Seneca called this “mental restlessness.”

“To be everywhere is to be nowhere. People who spend their whole life traveling end up having plenty of places where they can find hospitality but no real friendships.” If you are everywhere, you are nowhere. Seneca’s test was simple. After any activity, are you better or worse? More capable or less? More yourself, or more stressed? He didn’t say avoid all entertainment. He said choose.

Don’t let the crowd choose for you.

Fortune is not permanent

“All the greatest blessings cause anxiety, and fortune is never less wisely trusted than when at its most advantageous. To maintain prosperity we need fresh prosperity…”

Luck, status, and wealth can disappear just like that.

Seneca was one of the wealthiest men in Rome. He knew this could end at any time. Emperors were unstable. Fortunes were fragile. And he was right. Nero ordered him to kill himself, which Seneca did with, by all accounts, remarkable composure. His relationship with his wealth was therefore deliberately detached. He enjoyed it. He used it.

But never got attached.

“Wealth is the slave of a wise man and the master of a fool.”

Does your wealth serve your life, or does your life serve your wealth? Are you protecting a number, or building a meaningful life? Would you recognise yourself without your wealth? Seneca watched men in Rome who had crossed from the first category to the second without noticing. Men who had made enough to be free but kept working to make more. Terrified of the loss, unable to stop. The wealth had inverted from tool to master. They owned everything and were owned by it. Seneca’s reality check? Could you walk away? Has your money become your identity?

Take every day as a separate life

“Let us prepare our minds as if we had come to the very end of life. Let us postpone nothing. Let us balance life’s books each day… The one who puts the finishing touches on their life each day is never short of time.”

Seneca wanted you to live every day like a separate life. Each day on as it’s own life. To awaken all of yourself. “Begin at once to live, and count each separate day as a separate life,” he said. Regularly ask yourself whether what you’re doing right now is how you’d choose to spend your hours if you knew today was your last.

“…the person who devotes every second of his time to his own needs and who organizes each day as if it were a complete life neither longs for nor is afraid of the next day.”

Most people live in a state of constant deferral. We treat our lives like a massive, endless book. We assume we have infinite pages left, so we waste the page we are currently writing on. Count each separate day as a separate life, and your perspective changes. When you wake up, you are born.

The morning is your youth.

The afternoon is your middle age. The evening is your end. When you close your eyes at night, that specific life is over. This mindset kills putting life in the “waiting room.” You only have today. You have to do it now. Stop treating your life as one long life. Break it down into 24-hour sprints. Wake up, do the best you can with the hours in front of you. And live an entire, beautiful life before the sun goes down.