Avicenna Quotes

"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."
- Avicenna
(Related: Knowledge, Accidents, Beginnings, Causes, Study)

"That whose existence is necessary must necessarily be one essence."
- Avicenna
(Related: Existence)

"The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes."
- Avicenna
(Related: Knowledge, Causes)

"The world is divided into men who have wit and no religion and men who have religion and no wit."
- Avicenna
(Related: Men, Religion, Wit, World)

"Therefore in medicine we ought to know the causes of sickness and health."
- Avicenna
(Related: Health, Causes, Medicine, Sickness)