"As to the mental essence, we find it in infants devoid of every mental form." ~Ibn Sina
"That whose existence is necessary must necessarily be one essence." ~Ibn Sina
"The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes." ~Ibn Sina
"The power of thoughts can cause a you either illness or recovery." ~Ibn Sina
"The world is divided into men who have wit and no religion and men who have religion and no wit." ~Ibn Sina
"Therefore in medicine we ought to know the causes of sickness and health." ~Ibn Sina
