While the living thing may easily be crushed by superior force, it none the less tries to turn the energies which act upon it into means of its own further existence. If it cannot do so, it does not just split into smaller pieces (at least in the higher forms of life), but loses its identity as a living thing.

There is nothing left worth preserving in the notions of unseen powers, controlling human destiny, to which obedience and worship are due.

Some experiences are mis-educative. Any experience is mis-educative that has the effect of arresting or distorting the growth of further experience.

As societies become more complex in structure and resources, the need of formal or intentional teaching and learning increases.

Teaching can be compared to selling commodities. No one can sell unless someone buys ... yet there are teachers who think they have done a good day's teaching irrespective of what the pupils have learned.

A good aim surveys the present state of experience of pupils, and forming a tentative plan of treatment, keeps the plan constantly in view and yet modifies it as conditions develop. The aim, in short, is experimental, and hence constantly growing as it is tested in action.

As a child lives today, he will live tomorrow.