Only education is capable of saving our societies from possible collapse, whether violent, or gradual.

Children require long, uniterrupted periods of play and exploration

Reflective abstraction, however, is based not on individual actions but on coordinated actions.

We learn more when we are compelled to invent.

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.

In genetic epistemology, as in developmental psychology, too, there is never an absolute beginning.

Each time one prematurely teaches a child something he could have discovered himself, that child is kept from inventing it and consequently from understanding it completely.