... 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 true direction of the development of thinking is not from the individual to the social, but from the social to the individual.

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

The child begins to perceive the world not only through his [or her] eyes but also through his [or her] speech

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.

Through others we become ourselves.