The philosophy of Heraclitus is one of the most fascinating examples of thinking in the ancient world. It is possible that he was influenced by Eastern philosophies seeping into the Mediterranean region. He was certainly inspired by the Pythagorean and Milesian thinkers. He was rumored to be a pupil of Xenophanes. He lived circa 540-480 B.C.E. He is our first Doctor of Soul.
Via Zeteticus, Maxwell Purrington