Who said "The greatest teacher is the natural world itself."?

This quote is attributed to Anaxagoras.

The greatest teacher is the natural world itself. - Anaxagoras

"The greatest teacher is the natural world itself."

Anaxagoras Education

Philosopher Ancient Greece 500–428

"Appearances are a glimpse of the unseen."

"Mind is the finest thing that exists."

"Everything has a natural explanation."

"The greatest things are the smallest."

"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."