Who said "Nature's lessons are available to all who study."?

This quote is attributed to Karl Landsteiner.

Nature's lessons are available to all who study. - Karl Landsteiner

"Nature's lessons are available to all who study."

Karl Landsteiner Education

Immunologist Austrian-American 1868–1943

"Science is organized knowledge."

"The unknown is always feared."

"Discovery requires curiosity and patience."

"Blood types reveal the hidden connections between humanity."

"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."