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

What children can do with the assistance of others might be in some sense even more indicative of their mental development than what they can do alone

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.

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

Experience teaches us that thought does not express itself in words, but rather realizes itself in them

Any human act that gives rise to something new is referred to as a creative act, regardless of whether what is created is a physical object or some mental or emotional construct that lives within the person who created it and is known only to him.

The teacher must adopt the role of facilitator not content provider.