Socrates admits his ignorance, implicitly attacking *pretenders to knowledge* — namely the sophists, who were paid teachers of rhetoric, and from whom the earliest philosophers struggled to distinguish themselves. Socrates never took payment for his teaching. More generally this is the sense in which Socrates claims the oracle named him as the “wisest”: by knowing his own ignorance, and not pretending to know what he cannot, he is capable of learning — of becoming wise. He is therefore the wisest of his countrymen... precisely by knowing the limits of his wisdom, and not claiming to be able to teach what cannot be taught.

Nevertheless Socrates has a number of positive ethical and methodological doctrines, about the nature of the gods and the good and being itself; but the idea is that these are derived from honest questioning with an interlocutor, and finding what “language itself” has to say if it is to make any sense; these doctrines emerge dialectically, as it were organically, rather than being disclosed as though they were always known by him to be true.

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See the *Cratylus* 397a for more on this construction of Socrates' philosophical activity -- ie, that he is simply after what *words themselves* must say if they are to hang together intelligibly:

> So where do you wish for us to start examining [words]? For what we have done is embark upon a certain general project that that we will be able to see whether the words themselves will bear witness to us that they are applied to particular things in a way that does not come altogether from chance, but has a certain correctness about it (397a; Sachs)

So how does Socrates *himself* typify his own philosophical practice in general? As a _methodological skepticism_ which relies on the intelligibility of language itself to resolve problems. He makes intentional use of "living speech" to isolate ideas clearly in dialogue; or at least to help delineate where that's no longer possible. The *Cratylus* in particular is a dialogue which explicitly dramatizes this conflict between what human beings *wish* words would say... and what words *themselves* "wish" to say.