Jean Piaget

"The preservation of spontaneity and curiosity is essential to education."

"Understanding requires the integration of new information with existing knowledge."

"The child who is allowed to fail will learn more than the child who is always protected."

"Games with rules develop the child's sense of justice and fairness."

"Accommodation occurs when we modify our schemas to fit new information."

"The mind is not a vessel to be filled but a fire to be kindled."

"Perception is not purely sensory; it is actively constructed by the mind."

"The child's understanding of causality evolves through stages of development."

"Play is not the opposite of work; it is work engaged in for its own sake."

"The role of the teacher is to create situations where learning can occur naturally."

"Language development is intimately connected to cognitive development."

"The child should experience the consequences of his actions to learn responsibility."

"Reversibility is the ability to mentally undo an action or operation."

"The world is knowable because the mind itself helped construct it."

"Children construct their own understanding through active exploration."

"The adolescent begins to think about thinking itself, enabling meta-cognition."

"Punishment teaches fear, not morality; consequence teaches understanding."

"The beauty of a child's thought is its originality and freshness."

"Conservation is the understanding that quantity remains the same despite changes in appearance."

"Education should not be confined to the classroom but extended to all of life."

"The child's moral sense develops from external rules to internal principles."

"Structure is important, but it should be flexible enough to accommodate growth."

"The ability to see from another person's perspective is a sign of cognitive maturity."

"Objects have permanence; they continue to exist even when we cannot see them."

"The child learns language not by memorizing rules but by using it meaningfully."

"Society is not something separate from the child; it is internalized through development."

"The teacher must be a scientist observing the natural phenomena of child development."

"Decentration is the ability to focus on multiple aspects of a problem simultaneously."

"The child's drawings are not attempts at realism but expressions of understanding."

"Education is the most effective means of reducing prejudice and increasing understanding."