Note 1 — INTRODUCTION

It will be observed that Demokritos falls outside the period thus limited. The common practice of treating this younger contemporary of Sokrates along with the “pre-Socratic philosophers” obscures the true course of historical development. Demokritos comes after Protagoras, and his theory is already conditioned by the epistemological problem. (See Brochard, “Protagoras et Démocrite,” Arch. ii. p. 368.) He has also a regular theory of conduct (E. Meyer, Gesch. des Alterth. iv. § 514 n.).