Authors:
  1. Quotes
  2. Authors
  3. A
  4. Avicenna
  5. Now it is established in the sciences that no knowledge is...

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
Essentials, Causes, Study
"On Medicine". Essay by Avicenna (circa 1020), as quoted in "The Sacred Books and Early Literature of the East" edited by Charles F. Horne (Volume VI "Medieval Arabia", pp. 90-91), sourcebooks.fordham.edu. 1917.
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