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[182e] seeing or hearing?

It must be impossible, if all things are in motion.

Then we must not speak of seeing more than not seeing, or of any other perception more than of non-perception, if all things are in all kinds of motion.

No, we must not.

And yet perception is knowledge, as Theaetetus and I said.

Yes, you did say that.

Then when we were asked “what is knowledge?” we answered no more what knowledge is than what not-knowledge is.

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