Of the source and possibility of error many explanations have been tried since Plato's metaphorical solution of the dove-cot where the wrong pigeons are caught, &c.
-Errorearen jatorriaz eta ahaltasunaz, Platonen soluzio metaforikoaz hasita, usategiarena, nondik nahi ez den usoa ateratzen baita eta abar (, 167 or.