Pre-Socratic Greek philosopher who scorned civil society and popular thought. Overview of his ideas and selected fragments of his teachings.

Internet Encyclopedia of Philosophy provides this biography of the Ephesian philosopher.

Dr. Cynthia Freeland offers details on the pre-Socratic's punning style, fragments, position on flux, and role as a natural philosopher.

Read a brief encyclopedia entry that profiles the life and works of the ancient Greek philosopher Heraclitus.

Gordon L. Ziniewicz takes some of the pre-Socratic philosopher's sayings and explains their meaning, or logos.

Essay by Christopher Green of York University examines the many passages in the works of Heraclitus referring to the concept of psyche.