Language is the tool of the tools

... People with great passions, people who accomplish great deeds, people who possess strong feelings, even people with great minds and a strong personality, rarely come out of good little boys and girls.

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

The distance between the actual developmental level as determined by independent problem solving and the level of potential development as determined through problem solving under adult guidance or in collaboration with more capable peers

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

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

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.