What a child can do in cooperation today, he can do alone tomorrow.
A child's greatest achievements are possible in play, achievements that tomorrow will become her basic level of real action.
A mind cannot be independent of culture.
In play, a child is always above his average age, above his daily behavior; in play, it is as though he were a head taller than himself.
Somehow our society has formed a one-sided view of the human personality, and for some reason everyone understood giftedness and talent only as it applied to the intellect. But it is possible not only to be talented in one's thoughts but also to be talented in one's feelings as well.
The most significant moment in the course of intellectual development, which gives birth to the purely human forms of practical and abstract intelligence, occurs when speech and practical activity, two previously completely independent lines of development, converge.
Love can reach the same level of talent, and even genius, as the discovery of differential calculus.
