Quote by Jean Piaget
"The conservation of mass, weight, and volume are learned in a specific developmental sequence."
More from Jean Piaget
"The principal goal of education in the schools should be creating men and women who are capable of doing new things, not simply repeating what other generations have done."
"Play is the work of childhood."
"Intelligence is what you use when you don't know what to do."
"The child doesn't grow into the adult; but the adult is the child, elaborated."