"Now, then, have you ever seen any thing of this kind with your eyes?"

"By no means," he replied.

"Did you ever lay hold of them by any other bodily sense? But I speak
generally, as of magnitude, health, strength and, in a word, of the
essence of every thing; that is to say, what each is. Is, then, the
exact truth of these perceived by means of the body, or is it thus,
whoever among us habituates himself to reflect most deeply and
accurately on each several thing about which he is considering, he will
make the nearest approach to the knowledge of it?"

"Certainly."

28. "Would not he, then, do this with the utmost purity, who should in
the highest degree approach each subject by means of the mere mental
faculties, neither employing the sight in conjunction with the
reflective faculty, nor introducing any other sense together with
reasoning; but who, using pure reflection by itself, should attempt to
search out each essence purely by itself, freed as much as possible from
the eyes and ears, and, in a word, from the whole body, as disturbing
the soul, and not suffering it to acquire truth and wisdom, when it is
in communion with it. Is not he the person, Simmias, if any one can, who
will arrive at the knowledge of that which is?"

29. "You speak with wonderful truth, Socrates," replied Simmias.

"Wherefore," he said, "it necessarily follows from all this that some
such opinion as this should be entertained by genuine philosophers, so