How often is the soul of man - especially in childhood - deprived because he is not allowed to come in contact with nature.

The child should live in an environment of beauty.

The hands are the instruments of man’s intelligence.

The essential thing is to arouse such an interest that it engages the child’s whole personality.

We cannot create observers by saying 'observe,' but by giving them the power and the means for this observation and these means are procured through education of the senses.

Concentration is a part of life. It is not the consequence of a method of education.

Deceit is a kind of garment that conceals the soul. It might even be compared to a whole wardrobe, so many are its guises.