Psychology teaches us at every step that though two types of activity can have the same external manifestation, whether in origin or essence, their nature may differ most profoundly.

Thought is not merely expressed in words, it comes into existence through them

A child’s greatest achievements are possible in play, achievements that tomorrow will become her basic level of real action.

By giving our students practice in talking with others, we give them frames for thinking on their own.

It may be said that the basic characteristic of human behavior in general is that humans personally influence their relations with the environment and through that environment personally change their behavior, subjugating it to their control.

The only 'good' learning is that which is in advance of development.

Writing should be meaningful for children, Y an intrinsic need should be aroused in them, and Y writing should be incorporated into a task that is necessary and relevant.