Who said "The sick are the greatest teachers of medicine."?

This quote is attributed to Paracelsus.

The sick are the greatest teachers of medicine. - Paracelsus

"The sick are the greatest teachers of medicine."

Paracelsus Education

Physician Alchemist Mystic Swiss 1493–1541

"The greatest healing therapy is friendship and love."

"A physician without a knowledge of Alchemy is not properly qualified."

"Nature itself is the best physician."

"Man has such power as has the earth."

"Education opens doors."

"Education opens doors to endless possibilities."

"I ain't got the education you got, bub."

"You can't put a price on history."