Fragments
What survives of Parmenides
Nothing Parmenides wrote survives complete. These 7 lines reached us only because later writers copied them into works of their own, usually while arguing about something else.
DK 28 B1, Wording likely his
Sextus Empiricus, Against the Logicians VII.111 (c. 200 CE)
The same sceptic who preserved Heraclitus's opening also copied out the proem of Parmenides, again as material for an argument about how anyone could claim to know anything.
DK 28 B2, Wording likely his
Proclus, Commentary on Plato's Timaeus I.345 (c. 440 CE)
A Neoplatonist reading Plato reached back nine centuries for the lines that first set out the choice between being and not-being.
DK 28 B3, Wording disputed
Clement of Alexandria, and again by Plotinus, Miscellanies; Enneads VI.23; V.1.8 (c. 200 and c. 260 CE)
Quoted independently by a Christian apologist and by the founder of Neoplatonism, who read it as an anticipation of his own doctrine that thought and being coincide.
DK 28 B6, Wording likely his
Simplicius, Commentary on Aristotle's Physics 86.27 (c. 540 CE)
Simplicius was explaining a passage of Aristotle and quoted the original to show that Aristotle had reported it fairly.
DK 28 B8, Wording likely his
Simplicius, Commentary on Aristotle's Physics 145.1 (c. 540 CE)
Simplicius wrote that he was transcribing these verses at length because copies of Parmenides's book had become scarce. He was right to worry; his commentary is now the reason we have them.
DK 28 B16, Wording likely his
Aristotle, and separately Theophrastus, Metaphysics; On the Senses 1009b21; 3 (c. 340 and c. 320 BCE)
Aristotle quoted it while arguing that earlier thinkers had confused thought with bodily states, and his pupil Theophrastus quoted it again in a survey of theories of perception.
DK 28 B19, Wording likely his
Simplicius, Commentary on Aristotle's On the Heavens 558.9 (c. 540 CE)
Quoted as the closing lines of the section on mortal opinion, to mark where the poem ended.






