Note 633 — Chapter LXVIII · SOKRATES.

Xenoph. Mem. i, 6, 10. Even Antisthenês (disciple of Sokratês, and the originator of what was called the Cynic philosophy), while he pronounced virtue to be self-sufficient for conferring happiness, was obliged to add that the strength and vigor of Sokratês were required as a farther condition: αὐτάρκη τὴν ἀρετὴν πρὸς εὐδαιμονίαν, μηδενὸς προσδεομένην ὅτι μὴ τῆς Σωκρατικῆς ἴσχυος; Winckelman, Antisthen. Fragment. p. 47; Diog. Laërt. vi, 11.