"All credibility, all good conscience, all evidence of truth come only from the senses"
About this Quote
Nietzsche is kicking the ladder out from under “pure” reason and daring you to watch where you land. If credibility and good conscience only come from the senses, then the great philosophical prestige project - truths certified by logic, God, or metaphysics - starts to look like a confidence game: elegant, internally consistent, and untethered from lived reality. The line has the bite of a polemic because it hijacks moral language (“good conscience”) and drags it into the body. He’s not merely saying we perceive the world through senses; he’s saying our most pious claims to certainty are, at bottom, physiological.
The subtext is a refusal of the philosopher-as-priest. Nietzsche treats “truth” as something with a genealogy: a history of needs, fears, and power moves. By grounding evidence in sensation, he undercuts the idea that we can escape interpretation by retreating into abstraction. Even “reason” becomes a tool the organism uses, not a divine tribunal hovering above it. That’s why the sentence feels like a slap: it moralizes empiricism and de-moralizes metaphysics.
Context matters. Nietzsche is writing after the traditional guarantor of truth - God, in the cultural sense - has begun to lose authority. The vacuum is filled by science on one side and moralistic idealism on the other. His move is to praise the senses without turning them into a new church. Senses don’t deliver pristine facts; they deliver perspectival data, shot through with drives. The provocation isn’t “trust your senses” like a self-help mantra. It’s: admit that every claim to truth has a body behind it, and that body has an agenda.
The subtext is a refusal of the philosopher-as-priest. Nietzsche treats “truth” as something with a genealogy: a history of needs, fears, and power moves. By grounding evidence in sensation, he undercuts the idea that we can escape interpretation by retreating into abstraction. Even “reason” becomes a tool the organism uses, not a divine tribunal hovering above it. That’s why the sentence feels like a slap: it moralizes empiricism and de-moralizes metaphysics.
Context matters. Nietzsche is writing after the traditional guarantor of truth - God, in the cultural sense - has begun to lose authority. The vacuum is filled by science on one side and moralistic idealism on the other. His move is to praise the senses without turning them into a new church. Senses don’t deliver pristine facts; they deliver perspectival data, shot through with drives. The provocation isn’t “trust your senses” like a self-help mantra. It’s: admit that every claim to truth has a body behind it, and that body has an agenda.
Quote Details
| Topic | Truth |
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