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

What a child can do today with assistance, she will be able to do by herself tomorrow.

... 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.

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

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

In play, the child is always behaving beyond his age, above his usual everyday behaviour; in play he is, as it were, a head above himself. Play contains in a concentrated form, as in the focus of a magnifying glass, all developmental tendencies; it is as if the child tries to jump above his usual level.