Page:Greek Biology and Medicine.djvu/145

 THE FINAL SYSTEM: GALEN spirit. His systematic treatment of all matters that men need know, his authoritative self- assurance, and above all, perhaps, his com- pleted teleology, or convincing declaration of the purpose of every part and organ of the body, contributed to make of him the source or canon par excellence of Arabian and western medieval medicine. In many garbs and forms he reigned for centuries. [123]