Re: Winner of today's Dennis Miller Obscure Reference award...
Inasmuch as Socrates never wrote anything, it only through analysis of the writing that one can estimate where Socrates leaves off, and his pupil, Plato starts. In the allegory of the cave, I really don't remember sourcing, but I am willing to accept Plato---doesn't change anything and if that pleases you...! When I get the chance I will see if I.F. Stone has an opinion on this.
Publius