Who said "Learning requires both challenge and support."?

This quote is attributed to Malcolm Knowles.

Learning requires both challenge and support. - Malcolm Knowles

"Learning requires both challenge and support."

Malcolm Knowles Education

Adult Education Scholar American 1913–1997

"Self-directed learning is the most powerful and natural form of learning."

"Adults have a deep need to be self-directed and to have control over decisions that affect their lives."

"The most important thing I have learned is that learning is a lifelong process."

"Experience is the best teacher."

"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."