The activity of the immature human being is simply played upon to secure habits which are useful. He is trained like an animal rather than educated like a human being. His instincts remain attached to their original objects of pain or pleasure. But to get happiness or to avoid the pain of failure he has to act in a way agreeable to others.

The conduct of schools, based upon a new order of conception, is so much more difficult than is the management of schools which walk the beaten path.

The need for growth, for development, for change, is fundamental to life.

There's all the difference in the world between having something to say, and having to say something.

All learning begins when our comfortable ideas turn out to be inadequate.

Everything depends on the quality of the experience which is had.

Without initiation into the scientific spirit one is not in possession of the best tools which humanity has so far devised for effectively directed reflection. One in that case not merely conducts inquiry and learning without the use of the best instruments, but fails to understand the full meaning of knowledge.