Thought is not merely expressed in words, it comes into existence through them

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

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

Language is the tool of the tools

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

The only 'good' learning is that which is in advance of development.

Thought is not merely expressed in words, it comes into existence through them