The hymn to Zeus, which has been ascribed to Cleanthes, and some of the pseudo-Orphic declamations, may give us an idea of the gravity and enthusiasm which Empedocles would have displayed in treating so stirring a theme. Of his remaining works we possess fragments. The great poem on Nature, the Lustral Precepts, and the Discourse on Medicine were all celebrated among the ancients. Fortunately, the inductions to the first and second of these have been preserved, and some lines addressed to Pausanias may be regarded as forming the commencement of the third. It is from these fragments, amounting in all to about 470 lines, that we must form our judgment of Empedocles, the poet and the sage. That Empedocles was a poet of the didactic order is clear from the nature of his subjects. Even as early as the time of Aristotle, critics disputed as to whether poems written for the purpose of scientific instruction deserved the name of poetry. In the _Poetics_, Aristotle says, #ouden de koinon estin Homêrôi kai Empedoklei plên to metron; dio ton men poiêtên dikaion kalein, ton de physiologon mallon ê poiêtên#.[47] The title #physiologos#, or philosopher of nature, was of course generic, and might have been claimed by Heraclitus, on the strength of his prose writings, no less than by Empedocles. Lucretius, in the exordium to his poem, argues for the utility of disguising scientific precepts under the more attractive form of art; as we sweeten the lips of the vessel that contains bitter medicine, in order to induce the child to take it readily. And not only had Empedocles this reason in his favor for the use of verse, but also, at the age in which he lived, it was still a novelty to write prose at all; nor would it have been consistent with his theories of inspiration, and with the mysticism he professed, to abandon the poetic form of utterance. He therefore thought and wrote hexameters as naturally as the scientific men of the present day think and write their sentences and paragraphs, until the discourse is formed into a perfect whole. Allowing, then, for the subject of his poem, Empedocles was regarded by antiquity as first among the Greek didactic singers, though he competed with Parmenides for this distinction, and was placed upon a level with Lucretius. Lactantius mentions them both together, in his definition of this kind of poetry. And Aristotle, in another treatise, now lost, but quoted by Diogenes, praises the artistic genius of the philosopher in these words: #Kai Homêrikos ho Empedoklês kai deinos peri tên phrasin gegone metaphorikos te ôn kai tois allois peri tên poiêtikên epiteugmasi chrômenos#.[48] The epithet #Homêrikos# is very just; for not only is it clear that Empedocles had studied the poems of Homer with care, and had imbibed their phraseology, but he also possessed a genius akin to that of Homer in love of simplicity, in fidelity to nature, in unimpeded onward flow of energetic verse.