1001Philosophers

Friedrich Nietzsche vs Plato on Knowledge

Plato treats knowledge as the soul's grasp of the eternal Forms, recovered through the dialectical ascent away from sensible appearances. Nietzsche denies that there is anything eternal to ascend toward: what passes for knowledge is interpretation under conditions of power, and the ideal of pure objective truth is itself a symptom of life-denial. The Platonic knower returns to a knowledge already possessed; the Nietzschean knower analyzes the will to truth as a problem in its own right.

About this topic

Epistemology is the branch of philosophy concerned with the nature, sources, and limits of knowledge. Philosophers have asked what distinguishes knowledge from mere opinion, whether it requires certainty or can be probabilistic, and how perception, reason, memory, and testimony each contribute. Ancient skeptics challenged the possibility of knowledge altogether, while rationalists located its source in reason and empiricists in experience. Contemporary epistemology investigates justification, reliability, and the social conditions under which beliefs count as knowing.

For a side-by-side overview of the two philosophers more broadly, see the full Friedrich Nietzsche vs Plato comparison. To browse philosophy more widely on this theme, see the Knowledge quotes hub.

Representative quotes on knowledge

Friedrich Nietzsche on knowledge

  • “Postcard to Franz Overbeck , Sils-Maria (30 July 1881), tr. Walter Kaufmann , The Portable Nietzsche (1954)”

    I am utterly amazed, utterly enchanted! I have a precursor , and what a precursor! I hardly knew Spinoza : that I should have turned to him just now , was inspired by "instinct." Not only is his overtendency like mine—namely to make all knowledge the most powerful affect — but in five main points of his doctrine I recognize myself; this most unusual and loneliest thinker is closest to me precisely

  • “Against that positivism which stops before phenomena, saying "there are only facts," I should say: no, it is precisely facts that do not exist, only interpretations.”

    Notebooks (Late 1886 – Spring 1887) | Popular usage: "There are no facts, only interpretations.

  • “Notebooks (Late 1886 – Spring 1887)”

    Against that positivism which stops before phenomena, saying "there are only facts," I should say: no, it is precisely facts that do not exist, only interpretations.

  • “Popular usage: "There are no facts, only interpretations.”

    Against that positivism which stops before phenomena, saying "there are only facts," I should say: no, it is precisely facts that do not exist, only interpretations.

  • “In Germany there is much complaining about my "eccentricities." But since it is not known where my center is, it won't be easy to find out where or when I have thus far been "eccentric." That I was a philologist , for example, meant that I was outside my center (which fortunately does not mean that I was a poor philologist). Likewise, I now regard my having been a Wagnerian as eccentric. It was a highly dangerous experiment; now that I know it did not ruin me, I also know what significance it had for me — it was the most severe test of my character.”

    Letter to Carl Fuchs (14 December 1887)

All 9 Friedrich Nietzsche quotes on knowledge →

Plato on knowledge

  • “Philosophy begins in wonder.”

    155d, The Dialogues of Plato , Volume 3, 1871, p. 377

  • “I shall assume that your silence gives consent .”

    435b

  • “If the very essence of knowledge changes, at the moment of the change to another essence of knowledge there would be no knowledge, and if it is always changing, there will always be no knowledge, and by this reasoning there will be neither anyone to know nor anything to be known. But if there is always that which knows and that which is known —if the beautiful, the good, and all the other verities exist— I do not see how there is any likeness between these conditions of which I am now speaking and flux or motion.”

    440a–b

  • “155d, The Dialogues of Plato , Volume 3, 1871, p. 377”

    Wonder is the feeling of a philosopher, and philosophy begins in wonder.

  • “Perception and knowledge could never be the same.”

    186e

All 12 Plato quotes on knowledge →

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