Reason alone will prove the truth of facts.
On which account Timon says of him:—
The vigorous mind of wise Parmenides,
Who classes all the errors of the thoughts
Under vain phantasies.
Plato inscribed one of his dialogues with his name—Parmenides, or an essay on Ideas. He flourished about the sixty-ninth Olympiad. He appears to have been the first person who discovered that Hesperus and Lucifer were the same star, as Phavorinus records, in the fifth book of his Commentaries. Some, however, attribute this discovery to Pythagoras. And Callimachus asserts that the poem in which this doctrine is promulgated is not his work.
IV. He is said also to have given laws to his fellow-citizens, as Speusippus records, in his account of the Philosophers. He was also the first employer of the question called the Achilles,[124] as Phavorinus assures us in his Universal History.
V. There was also another Parmenides, an orator, who wrote a treatise on the art of Oratory.