We shall take Leucippus and Democritus with Empedocles; in them there is manifested the ideality of the sensuous and also universal determinateness or a transition to the universal. Empedocles was a Pythagorean Italian, whose tendencies were Ionic; Leucippus and Democritus, who incline to the Italians, in that they carried on the Eleatic school, are more interesting. Both these philosophers belong to the same philosophic system; they must be taken together as regards their philosophic thought and considered thus.[68] Leucippus is the older, and Democritus perfected what the former began, but it is difficult to say what properly speaking belongs to him historically. It is certainly recorded that he developed Leucippus’ thought, and there is, too, some of his work preserved, but it is not worthy of quotation. In Empedocles we see the commencement of the determination and separation of principles. The becoming conscious of difference is an essential moment, but the principles here have in part the character of physical Being, and though partaking also of ideal Being, this form is not yet thought-form. On the other hand we find in Leucippus and Democritus the more ideal principles, the atom and the Nothing, and we also find thought-determination more immersed in the objective—that is, the beginning of a metaphysics of body; or pure Notions possess the significance of the material, and thus pass over thought into objective form. But the teaching is, on the whole, immature, and is incapable of giving satisfaction. 1. LEUCIPPUS AND DEMOCRITUS. Nothing is accurately known of the circumstances of Leucippus’ life, not even where he was born. Some, like Diogenes Laertius (IX. 30), make him out to be an Eleatic; others to have belonged to Abdera (because he was with Democritus), or to Melos—Melos is an island not far from the Peloponnesian coast—or else, as is asserted by Simplicius in writing on Aristotle’s Physics (p. 7), to Miletus. It is definitely stated that he was a disciple and a friend of Zeno; yet he seems to have been almost contemporaneous with him as well as with Heraclitus.