Quote by William Stern

"The child is not a miniature adult, but a being in the process of development."

"Psychology must study the whole person in their total environment."

"Intelligence is not fixed but develops through interaction with the world."

"The mind grows through activity and experience."

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."