Enlightenment & 1800s · 1813–1855
Kierkegaard
“How should I, one single person, live?”
Søren Kierkegaard rebelled against grand systems like Hegel's that explained all of history but forgot the actual living individual. What matters, he insisted, is YOU — your own honest, passionate choices about how to live. Truth isn't just something you know with your head; it's something you commit to with your whole life.
“Life is not a problem to be solved, but a reality to be experienced.”
The big idea
Kierkegaard focused on the single individual and the leaps of choice that define a life. He described three ‘stages on life's way’ — the pleasure-seeking aesthetic, the dutiful ethical, and the committed religious — and argued that real faith requires a passionate ‘leap’ beyond what reason can prove. He's often called the father of existentialism.
What they changed
He shifted philosophy's focus from abstract systems to personal existence — anxiety, choice, and authenticity — themes that shaped Sartre, modern psychology, and existentialist thought.
The controversy
His ‘leap of faith’ troubles many: is choosing to believe something beyond reason brave and authentic, or simply irrational? He also fiercely attacked the comfortable official Church.
In their words
- “Anxiety is the dizziness of freedom.” — Søren Kierkegaard
- “Life can only be understood backwards; but it must be lived forwards.” — Søren Kierkegaard
✦ A curious detail
Kierkegaard wrote many of his books under wild fake names — almost staging a debate between different characters.
Read further
Portrait: Sketch of Søren Kierkegaard. Public domain · via Wikimedia Commons.
Meet Kierkegaard on the voyage
A curated lecture, a short enquiry, and a wax-seal medallion to acquire — and the next thinker unlocks. No account, no password.
Begin the voyage