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.

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.

There are many things which no teacher can convey to a child of three, but a child of five can do it with ease.

The greatest step forward in human evolution was made when society began to help the weak and the poor, instead of oppressing and despising them.

The secret of good teaching is to regard the child's intelligence as a fertile field in which seeds may be sown, to grow under the heat of flaming imagination.

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