Avicenna
Avicenna (980-1037), Arabic name ibn-Sina, was an Islamic philosopher and an illustrious Arabian physician, surnamed the prince of physicians, a man of immense learning and extensive practice in his art. His philosophical system greatly influenced the development of scholasticism. He was an authority in philosophy as well as in medicine, his philosophy being of the school of Aristotle with a mixture of Neoplatonism, his "Canon of Medicine," being the supreme in medical science for centuries.