But an adult if he is to provide proper guidance, must always be calm and act slowly so that the child who is watching him can clearly see his actions in all their particulars.

Growth and psychic development are therefore guided by: the absorbent mind, the nebulae and the sensitive periods, with their respective mechanisms. It is these that are hereditary and characteristic of the human species. But the promise they hold can only be fulfilled through the experience of free activity conducted in the environment.

To have a vision of the cosmic plan, in which every form of life depends on directed movements which have effects beyond their conscious aim, is to understand the child's work and be able to guide it better.

The senses, being the explorers of the world, open the way to knowledge.

In nature nothing creates itself and nothing destroys itself.

The teacher’s first duty is to watch over the environment, and this takes precedence over all the rest. It’s influence is indirect, but unless it be well done there will be no effective and permanent results of any kind, physical, intellectual or spiritual.

Growth comes from activity, not from intellectual understanding.