Page:Early Greek philosophy by John Burnet, 3rd edition, 1920.djvu/370

356 He speaks clearly of the four Empedoklean elements (fr. 2), and he is careful to attribute to Air the attributes of Nous as taught by Anaxagoras (fr. 4.). The doxographical tradition as to his cosmological views is fairly preserved:

=

We have here nothing more than the old Ionian doctrine with a few additions from more recent sources. Rarefaction and condensation still hold their place in the explanation of the opposites, warm and cold, dry and moist, stable and mobile (fr. 5). The differentiations into opposites which Air may undergo are, as Anaxagoras had taught, infinite in number; but all may be reduced to the primary opposition of rare and dense. We may gather, too, from Censorinus, that Diogenes did not, like Anaximenes, speak of earth and water as arising from Air by condensation, but rather of blood,