“What matters is to find a truth that is true for me, to find the idea for which I can live and die.”Søren Kierkegaard · Jurnale · 1850 · 1835
A truth is truly yours only if you are ready to pay for it with your whole existence.
The sentence is the manifesto of existential individualism: abstract truth, verified by everyone and lived by no one, is worth nothing to you. What matters is an idea that pierces your life — one that reorganizes your decisions, sacrifices, and fears. The criterion is not objectivity but commitment: if you would die for it, then it is yours. Someone who chooses medicine as a vocation because they cannot live otherwise has found such a truth; someone who chooses it for prestige has not. The difference lies not in content but in the price paid.
The card offers a test: what would you die for? But this test is not settled in one dramatic moment. It plays out daily, in the small prices you pay without announcing them. Someone convinced about family blocks the evening for his children, though a big position tempts him. Another speaks warmly about family, yet career always gets the first free hour. A real conviction shows in your calendar, not in your statements. And if everything is negotiable, maybe you have preferences, not yet a conviction. So how do you find out what deserves to become non-negotiable?
Why it matters It is useful for anyone wondering what is worth pursuing: it offers a simple test — what would you pay for with everything you have.