Razi was a physician, scientist, and a philosopher. Because of his many medical books; he has been named as Doctor's Doctor. His books are a flawless blend of two civilizations, expressed in the poetic language of a third. It is Razi's synthesis of science and metaphysics shaped in his mind who is a master physician and given verbal form by a master of the language. It is hardly an exaggeration to say that his books are uniquely Persian and written in the language of science of the time in Arabic. His style is poetic and has the beauty of word selections of a man confident in the supremacy of his reason and knowledge. His Persian blood is proved by his fondness for tales and countless little shades of thoughts and expressions.