One test of the correctness of educational procedure is the happiness of the child.

To teach details is to bring confusion; to establish the relationship between things is to bring knowledge.

The child's conquests of independence are the basic steps in what is called his 'natural development'.

Today, however, those things which occupy us in the field of education are the interests of humanity at large and of civilization, and before such great forces we can recognize only one country-the entire world.

A humankind abandoned in its earlier formative stage becomes its own greatest threat to survival.

The teacher must derive not only the capacity, but the desire, to observe natural phenomena. The teacher must understand and feel her position of observer: the activity must lie in the phenomenon.

Great tact and delicacy is necessary for the care of the mind of a child from three to six years, and an adult can have very little of it.