Play is the answer to how anything new comes about.

Scientific thought, then, is not momentary; it is not a static instance; it is a process.

Chance... in the accommodation peculiar to sensorimotor intelligence, plays the same role as in scientific discovery. It is only useful to the genius and its revelations remain meaningless to the unskilled.

Are we forming children who are only capable of learning what is already known? Or should we try to develop creative and innovative minds, capable of discovery from the preschool age on, throughout life?

To understand is to invent.

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

Play is the work of childhood.