Note 82 — Chapter I · SPECULATIVE PHILOSOPHY IN GREECE, BEFORE AND IN THE TIME OF SOKRATES.
Reading edition
Zeller’s account of the philosophy of Herakleitus in the second edition of his Philosophie der Griechen, vol. i. p. 450-496, is instructive. Marbach also is useful (Gesch. der Phil. s. 46-49); and his (Hegelian) exposition of Herakleitus is further developed by Ferdinand Lassalle (Die Philosophie Herakleitos des Dunklen, published 1858). This last work is very copious and elaborate, throwing great light upon a subject essentially obscure and difficult.