We especially need imagination in science. It is not all mathematics, nor all logic, but it is somewhat beauty and poetry.

Freedom in intellectual work is found to be the basis of internal discipline.

He who is served is limited in his independence.

Bring the child to the consciousness of his own dignity and he will feel free.

The undisciplined child enters into discipline by working in the company of others; not being told he is naughty.” “Discipline is, therefore, primarily a learning experience and less a punitive experience if appropriately dealt with.

There should be music in the child's environment, just as there does exist in the child's environment spoken speech. In the social environment the child should be considered and music should be provided.

There are many who hold, as I do, that the most important part of life is not the age of university studies, but the first one, the period from birth to the age of six. For that is the time when a man's intelligence itself, his greatest implement, is being formed. But not only his intelligence; the full totality of his psychic powers.