Plato

5th - 4th cc. BCE

Relevant Excerpts

Republic

364b - 365a

and begging priests and soothsayers go to rich men's doors and make them believe that they by means of sacrifices and incantations have accumulated a treasure of power from the gods that can expiate and cure with pleasurable festivals any misdeed of a man or his ancestors, and that if a man wishes to harm an enemy, at slight cost he will be enabled to injure just and unjust alike, since they are masters of spells and enchantments that constrain the gods to serve their end. And for all these sayings they cite the poets as witnesses, with regard to the ease and plentifulness of vice, quoting:

(excerpts from Hesiod and Homer)

And they produce a bushel of books of Musaeus and Orpheus, the offspring of the Moon and of the Muses, as they affirm, and these books they use in their ritual, and make not only ordinary men but states believe that there really are remissions of sins and purifications for deeds of injustice, by means of sacrifice and pleasant sport for the living, and that there are also special rites for the defunct, which they call functions, that deliver us from evils in that other world, while terrible things await those who have neglected to sacrifice.

Protagoras

316d - 317a

Now I tell you that sophistry is an ancient art, and those men of ancient times who practised it, fearing the odium it involved, disguised it in a decent dress, sometimes of poetry, as in the case of Homer, Hesiod, and Simonides sometimes of mystic rites and soothsayings, as did Orpheus, Musaeus and their sects; and sometimes too, I have observed, of athletics, as with Iccus of Tarentum and another still living—as great a sophist as any—Herodicus of Selymbria, originally of Megara; and music was the disguise employed by your own Agathocles, a great sophist, Pythocleides of Ceos, and many more. All these, as I say, from fear of ill-will made use of these arts as outer coverings.

Cratylus

400b - 400c

Hermogenes:
Now what shall we say about the next word?

Socrates:
You mean “body” (σῶμα)?

Hermogenes:
Yes.

Socrates:
I think this admits of many explanations, if a little, even very little, change is made; for some say it is the tomb* (σῆμα) of the soul, their notion being that the soul is buried in the present life; and again, because by its means the soul gives any signs which it gives, it is for this reason also properly called “sign” (σῆμα). But I think it most likely that the Orphic poets (οἱ ἀμφὶ Ὀρφέα) gave this name, with the idea that the soul is undergoing punishment for something; they think it has the body as an enclosure to keep it safe, like a prison, and this is, as the name itself denotes, the safe (σῶμα) *for the soul, until the penalty is paid, and not even a letter needs to be changed.

Epistles

7.335a - 7.335c

But we ought always truly to believe the ancient and holy doctrines which declare to us that the soul is immortal and that it has judges and pays the greatest penalties, whensoever a man is released from his body; wherefore also one should account it a lesser evil to suffer than to perform the great iniquities and injustices. But to these doctrines the man who is fond of riches but poor in soul listens not, or if he listens he laughs them (as he thinks) to scorn, while he shamelessly plunders from all quarters everything which he thinks likely to provide himself, like a beast, with food or drink or the satiating himself with the slavish and graceless pleasure which is miscalled by the name of the Goddess of Love; for he is blind and fails to see what a burden of sin—how grave an evil—ever accompanies each wrong-doing; which burden the wrong-doer must of necessity drag after him both while he moves about on earth and when he has gone beneath the earth again on a journey that is unhonored and in all ways utterly miserable.

Laws

6.782c - 6.782d

The custom of men sacrificing one another is, in fact, one that survives even now among many peoples; whereas amongst others we hear of how the opposite custom existed, when they were forbidden so much as to eat an ox, and their offerings to the gods consisted, not of animals, but of cakes of meal and grain steeped in honey, and other such bloodless sacrifices, and from flesh they abstained as though it were unholy to eat it or to stain with blood the altars of the gods; instead of that, those of us men who then existed lived what is called an “Orphic life,” keeping wholly to inanimate food and, contrariwise, abstaining wholly from things animate.

9.870d - 9.870e

Concerning all these matters, the preludes mentioned shall be pronounced, and, in addition to them, that story which is believed by many when they hear it from the lips of those who seriously relate such things at their mystic rites,—that vengeance for such acts is exacted in Hades, and that those who return again to this earth are bound to pay the natural penalty,—each culprit the same, that is, which he inflicted on his victim,—and that their life on earth must end in their meeting a like fate at the hands of another. To him who obeys, and fully dreads such a penalty, there is no need to add to the prelude by reciting the law on the subject;

9.872d - 9.872e

we must again recite the story we uttered a moment ago, if haply anyone, on hearing us, may become more strongly disposed in consequence voluntarily to abstain from murders of the most impious kind. The myth or story (or whatever one should call it) has been clearly stated, as derived from ancient priests, to the effect that Justice, the avenger of kindred blood, acting as overseer, employs the law just mentioned, and has ordained that the doer of such a deed must of necessity suffer the same as he has done:

Meno

81a - 81b

Some of them were priests and priestesses, who had studied how they might be able to give a reason of their profession: there have been poets also, who spoke of these things by inspiration, like Pindar, and many others who were inspired. And they say--mark, now, and see whether their words are true--they say that the soul of man is immortal, and at one time has an end, which is termed dying and at another time is born again, but is never destroyed. And the moral is, that a man ought to live always in perfect holiness. 'For in the ninth year Persephone sends the souls of those from whom she has received the penalty of ancient crime back again from beneath into the light of the sun above, and these are they who become noble kings and mighty men and great in wisdom and are called saintly heroes in after ages.' The soul, then, as being immortal, and having been born again many times, and having seen all things that exist, whether in this world or in the world below, has knowledge of them all; and it is no wonder that she should be able to call to remembrance all that she ever knew about virtue,...

[Italicized is fragment of Pindar]

Phaedo

70c

Suppose we consider the question whether the souls of men after death are or are not in the world below. There comes into my mind an ancient doctrine which affirms that they go from hence into the other world, and returning hither, are born again from the dead.