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

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.

The fundamental basis of education must always remain that one must act for oneself. That is clear. One must act for him or herself.

Conventions which camouflage a man's true feelings are a spiritual lie which help him adapt himself to the organized deviations of society.

Except when he has regressive tendencies, the child's nature is to aim directly and energetically at functional independence.

Only practical work and experience lead the young to maturity.