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

A word devoid of thought is a dead thing, and a thought unembodied in words remains a shadow.

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.

... 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.

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

Pedagogy must be oriented not to the yesterday, but to the tomorrow of the child's development. Only then can it call to life in the process of education those processes of development which now lie in the zone of proximal development

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