Aet. i. 3; _Dox._ 283. Herakleitos and Hippasos say that the first principle of all things is fire; for they say that all things arise from fire and they all end by becoming fire. As this is quenched all things come into the order of the universe; for first the dense part of it contracting into itself becomes earth, then the earth becoming relaxed by fire is rendered water in its nature, then it is sublimated and becomes air; and again the universe and all bodies are consumed by fire in the conflagration. [Fire then is the first principle because all things arise from this, and the final principle because all things are resolved into this.] Aet. 1. 5; _Dox._ 292. Hippasos of Metapontum and Herakleitos the Ephesian say that the all is one, ever moving and limited, and that fire is its first principle. Aet. i. 7; _Dox._ 303. Herakleitos says that the periodic fire is eternal, and that destined reason working through opposition is the creator [δημιουργὸν] of things. Aet. i. 9; _Dox._ 307. H. et al. declare that matter is subject to change, variation, and transformation, and that it flows the whole through the whole. Aet. i. 13; _Dox._ 312. H. introduces certain very small and indivisible particles (or H. seems to some to leave particles, instead of the unity). Aet. i. 23; _Dox._ 320. H. denies rest and fixed position to the whole; for this is the attribute of dead bodies; but he assigns eternal motion to what is eternal, perishable motion to what is perishable. Aet. i. 27; _Dox._ 322. H. says that all things happen according to fate and that fate itself is necessity. Indeed he writes ‘For it is absolutely destined.’ (Frag. 63.) Aet. i. 23; _Dox._ 323. H. declares that reason, pervading the essence of the all, is the essence of fate. And it is itself ethereal matter, seed of the generation of the all, and measure of the allotted period.