With the rotations of the Kosmos, began the course of Time--years, months, days, &c. Anterior to the Kosmos, there was no time: no past, present, and future: no numerable or mensurable motion or change. The Ideas are eternal essences, without fluctuation or change: existing _sub specie æternitatis_, and having only a perpetual present, but no past or future.[38] Along with them subsisted only the disorderly, immeasurable, movements of Chaos. The nearest approach which the Demiurgus could make in copying these Ideas, was, by assigning to the Kosmos an eternal and unchanging motion, marked and measured by the varying position of the heavenly bodies. For this purpose, the sun, moon, and planets, were distributed among the various portions of the circle of Different: while the fixed stars were placed in the Circle of the Same, or the outer Circle, revolving in one uniform rotation and in unaltered position in regard to each other. The interval of one day was marked by one revolution of this outer or most rational Circle:[39] that of one month, by a revolution of the moon: that of one year, by a revolution of the sun. Among all these sidereal and planetary Gods the Earth was the first and oldest. It was packed close round the great axis which traversed the centre of the Kosmos, by the turning of which axis the outer circle of the Kosmos was made to revolve, generating night and day. The Earth regulated the movement of this great kosmical axis, and thus become the determining agent and guarantee of night and day.[40] [Footnote 38: Plato, Timæus, pp. 37-38. Lassalle, in his copious and elaborate explanation of the doctrine of Herakleitus (Die Philosophie Herakleitos des Dunkeln, Berlin, 1858, vol. ii. p. 210, s. 26), represents this doctrine of Plato respecting Time as "durch und durch heraklitisch". To me it seems quite distinct from, or rather the inversion of, that which Lassalle himself sets down as the doctrine of Herakleitus. Plato begins with [Greek: to\ a)i+/dion] or [Greek: ai)ô/nion], an eternal sameness or duration, without succession, change, generation or destruction,--this passes into perpetual succession or change, with frequent generation and destruction. Herakleitus, on the other hand, recognises for his primary or general law perpetual succession, interchange of contraries, generation and destruction; this passes into a secondary state, in which there is temporary duration and sameness of particulars--the flux being interrupted.