Our problem, from the point of view of psychology and from the point of view of genetic epistemology, is to explain how the transition is made from a lower level of knowledge to a level that is judged to be higher.

— Jean Piaget

Play is the work of childhood.

— Jean Piaget

Scientific knowledge is in perpetual evolution it finds itself changed from one day to the next.

— Jean Piaget

The child often sees only what he already knows. He projects the whole of his verbal thought into things. He sees mountains as built by men, rivers as dug out with spades, the sun and moon as following us on our walks.

— Jean Piaget

The current state of knowledge is a moment in history, changing just as rapidly as the state of knowledge in the past has ever changed and, in many instances, more rapidly.

— Jean Piaget

The goal of education is not to increase the amount of knowledge but to create the possibilities for a child to invent and discover, to create men who are capable of doing new things.

— Jean Piaget

The main functions of intelligence, that of inventing solutions and that of verifying them, do not necessarily involve one another. The first partakes of imagination; the second alone is properly logical.

— 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.

— 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; men and women who are creative, inventive and discoverers, who can be critical and verify, and not accept, everything they are offered.

— Jean Piaget

This means that no single logic is strong enough to support the total construction of human knowledge.

— Jean Piaget