Memento mori: meaning, origin and how to practice it

Memento mori is Latin for “remember that you will die”. It sounds grim. For the Stoics, it was one of the most life affirming ideas there is: a reminder that time is limited, so it should not be wasted on what does not matter.

What memento mori means

The phrase is a short instruction to yourself. Not “think about death all the time”, but “do not forget it”. Remembering that life ends puts every worry, grudge and postponed plan in perspective.

The point is not fear. The point is clarity. If you knew you had limited time, and you do, which of today’s concerns would still matter?

Where the phrase comes from

The exact words “memento mori” became popular in medieval Christian Europe, on gravestones, paintings and the skull imagery of the vanitas tradition. The idea is much older.

A well known story describes Roman generals riding through the city in a triumph after a victory, with a companion reminding them that they were only human. Whether or not every detail is true, the lesson stuck: even at the height of success, remember your limits.

The Stoics made the idea a daily practice.

What the Stoics said about death

All three of the great Roman Stoics returned to death again and again, always to make a point about life.

Marcus Aurelius reminded himself in Meditations that he could leave life at any moment, and that this should shape what he did, said and thought. He also noticed how quickly even famous people are forgotten, which helped him care less about reputation.
Seneca wrote that we waste our lives as if we had endless time, and that the person who has learned how to die has unlearned how to be a slave. His essay On the Shortness of Life argues that life is long enough if we use it well.
Epictetus told his students to keep death and loss before their eyes every day, so they would never think a base thought or desire anything too much.

For them, death was not something to obsess over. It was a tool for seeing what matters.

Why memento mori helps

It ends procrastination. “Someday” stops sounding like a plan.
It shrinks petty worries. An awkward comment or a bad meeting looks small next to a finite life.
It deepens gratitude. Remembering that people and moments are temporary makes them more precious, not less.
It reduces fear of death itself. Thinking about something calmly and often makes it less terrifying.

How to practice memento mori

You do not need a skull on your desk. These small practices work.

The last day question. Once a day, ask: “If this were my last week, would I spend this hour this way?” You will not always change what you do, but you will notice.
The evening review. Before sleep, write what you did with today’s hours. A day you used well is a day well lived, however short.
The farewell practice. When you say goodbye to someone you love, remember for a moment that every goodbye could be the last. Then be a little warmer.
The time count. Roughly count how many summers, holidays or visits with a parent you might have left. The number is usually smaller than you think.
A visible reminder. A quote on your lock screen, a note in your journal, or a daily Stoic quote. Our Seneca quotes have many on time and mortality.

Memento mori and journaling

Writing is one of the best ways to keep the idea alive without it becoming heavy. A few prompts:

What would I regret not doing if my time ended this year?
What am I postponing that I actually care about?
Who should I call this week?
What did I do today that I would be proud of at the end of my life?

For more questions like these, see our list of Stoic journal prompts. And for the Stoic idea that pairs naturally with memento mori, read about amor fati, the love of fate.

Remembering death is, in the end, a way of remembering to live.