The world is divided into men who have wit and no religion and men who have religion and no wit.
Avicenna, known in Arabic as Ibn Sina, was a leading philosopher and physician of the Muslim world and a seminal figure of the Islamic Golden Age. He served in the courts of various Iranian rulers and influenced medieval European medicine and Scholastic thought. He is considered one of the greatest thinkers and medical scholars in history.
Often described as the father of early modern medicine, he is best known for The Book of Healing, a philosophical and scientific encyclopedia, and The Canon of Medicine, a medical encyclopedia that became a standard text at many medieval European universities and remained in use as late as 1650. His writings also cover astronomy, alchemy, geography, psychology, Islamic theology, logic, mathematics, physics and poetry, and his philosophy belonged to the Peripatetic school derived from Aristotle.
Often described as the father of early modern medicine, he is best known for The Book of Healing, a philosophical and scientific encyclopedia, and The Canon of Medicine, a medical encyclopedia that became a standard text at many medieval European universities and remained in use as late as 1650. His writings also cover astronomy, alchemy, geography, psychology, Islamic theology, logic, mathematics, physics and poetry, and his philosophy belonged to the Peripatetic school derived from Aristotle.
Now it is established in the sciences that no knowledge is acquired save through the study of its causes and beginnings, if it has had causes and beginnings; nor completed except by knowledge of its accidents and accompanying essentials.
Therefore in medicine we ought to know the causes of sickness and health.
Anyone who denies the law of non-contradiction should be beaten and burned until he admits that to be beaten is not the same as not to be beaten, and to be burned is not the same as not to be burned.