Hypatia of Alexandria was a famous philosopher of Egypt who ran into trouble with the Christian Church.
Galen, a Greek doctor, was a prolific writer who wrote on medicine and philosophy.
Heraclitus was an elitist philosopher from Ephesus who is known for his philosophy of flux.
Hippocrates was a Greek doctor who looked for medical rather than religious reasons for ailments.
Chinese philosopher and one of the possible founders of Taoism, Lao-Tse was a contemporary of another famous Chinese philosopher, Kung Fu Tse (Confucius). Here you'll find his Te Tao Ching translated into English.
Leucippus was one of the Pre-Socratic philosophers who developed the atomist theory. He worked with Democritus of Abdera as either his colleague or teacher.
The Meditations are philosophical writing by Emperor Marcus Aurelius.
