What specially characterizes Zeno is the dialectic which, properly speaking, begins with him; he is the master of the Eleatic school in whom its pure thought arrives at the movement of the Notion in itself and becomes the pure soul of science. That is to say, in the Eleatics hitherto considered, we only have the proposition: “The nothing has no reality and is not at all, and thus what is called origin and decease disappears.” With Zeno, on the contrary, we certainly see just such an assertion of the one and removal of what contradicts it, but we also see that this assertion is not made the starting point; for reason begins by calmly demonstrating in that which is established as existent, its negation. Parmenides asserts that “The all is immutable, for, in change, the non-being of that which is would be asserted, but Being only is; in saying that non-being is, the subject and the predicate contradict themselves.” Zeno, on the other hand, says: “Assert your change; in it as change there is the negation to it, or it is nothing.” To the former change existed as motion, definite and complete. Zeno protested against motion as such, or pure motion. “Pure Being is not motion; it is rather the negation of motion.” We find it specially interesting that there is in Zeno the higher consciousness, the consciousness that when one determination is denied, this negation is itself again a determination, and then in the absolute negation not one determination, but both the opposites must be negated. Zeno anticipated this, and because he foresaw that Being is the opposite of nothing, he denied of the One what must be said of the nothing. But the same thing must occur with all the rest. We find this higher dialectic in Plato’s Parmenides; here it only breaks forth in respect to some determinations, and not to the determination of the One and of Being. The higher consciousness is the consciousness of the nullity of Being as of what is determined as against the nothing, partly found in Heraclitus and then in the Sophists; with them it never has any truth, it has no existence in itself, but is only the for-another, or the assurance of the individual consciousness, and assurance as refutation, i.e. the negative side of dialectic.