Heidegger, Martin, "Plato's Doctrine of Truth," trans. Thomas Sheehan, Pathmarks, ed. William McNeill, Cambridge, UK: Cambridge University Press, 1998, 155-82.

Whatever one makes of Heidegger’s own views, or his criticism of Plato and what he calls the Platonic tradition, this essay offers a profound meditation on Plato’s Cave and Plato’s “doctrine” of truth.

Excerpt:

The knowledge that comes from the sciences usually is expressed in propositions and is laid before us in the form of conclusions that we can grasp and put to use. But the “doctrine” of a thinker is that which, within what is said, remains unsaid, that to which we are exposed so that we might expend ourselves on it.

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