Moral autonomy appears when the mind regards as necessary an ideal that is independent of all external pressures.

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.

True interest appears when the self identifies itself with ideas or objects, when it finds in them a means of expression and they become a necessary form of fuel for its activity.

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

If logic itself is created rather than being inborn, it follows that the first task of education is to form reasoning.

When you teach a child something you take away forever his chance of discovering it for himself.

The principal goal of education is to create men who are capable of doing new things, not simply of repeating what other generations have done-men who are creative, inventive, and discovers. The second goal of education is to form minds which can be critical, can verify, and not accept everything they are offered.