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Sisu vs Grit
Both name the human capacity to keep going when it is hard — one a centuries-old Finnish word, the other a modern psychology concept. The difference is in where they show up.
Sisu
Sisu (Finland) is the extraordinary reserve of determination and courage that appears in the face of overwhelming adversity — the "second wind" beyond your assumed limits.
Explore Sisu →Grit
Grit (Angela Duckworth) is sustained passion and perseverance toward long-term goals — the daily, years-long commitment that predicts achievement.
Explore Grit →What Sisu and Grit share
- Both are about persevering past the point most people quit.
- Both can be built, not just inherited.
- Both matter more than talent for hard, long pursuits.
The key differences
| Sisu | Grit | |
|---|---|---|
| Timescale | In-the-moment, against acute adversity. | Over years, toward a long goal. |
| Trigger | Crisis; reaching your limit. | A consistent, enduring passion. |
| Flavour | Raw courage and reserve strength. | Steady, patient consistency. |
| Origin | Finnish cultural concept (centuries old). | Modern psychology research. |
Which is for you?
Grit gets you through the long, boring middle of a worthy goal; sisu gets you through the moment you are sure you cannot continue. Build grit as a daily habit, and sisu will be there when the wall arrives.
Frequently asked
Is sisu the same as grit?
They overlap but differ in timescale: sisu is acute courage in a hard moment; grit is sustained perseverance over years. You want both.