I know indeed that certain others have written about these same subjects; but what manner of men they are not even themselves know. But thus much I can certainly declare [341c] concerning all these writers, or prospective writers, who claim to know the subjects which I seriously study, whether as hearers of mine or of other teachers, or from their own discoveries; it is impossible, in my judgment at least, that these men should understand anything about this subject.
There does not exist, nor will there ever exist, any treatise of mine dealing therewith. For it does not at all admit of verbal expression like other studies, but, as a result of continued application to the subject itself and communion therewith, it is brought to birth in the soul on a sudden, as light that is kindled [341d] by a leaping spark, and thereafter it nourishes itself.
Notwithstanding, of thus much I am certain, that the best statement of these doctrines in writing or in speech would be my own statement; and further, that if they should be badly stated in writing, it is I who would be the person most deeply pained. And if I had thought that these subjects ought to be fully stated in writing or in speech to the public, what nobler action could I have performed in my life than that of writing what is of great benefit to mankind and [341e] bringing forth to the light for all men the nature of reality?
But were I to undertake this task it would not, as I think, prove a good thing for men, save for some few who are able to discover the truth themselves with but little instruction; for as to the rest, some it would most unseasonably fill with a mistaken contempt, and others with an overweening and empty aspiration, as though they had learnt some sublime mysteries.
Plato (Epis. 7, 341b-e)