Discipline must come through liberty. . . . We do not consider an individual disciplined only when he has been rendered as artificially silent as a mute and as immovable as a paralytic. He is an individual annihilated, not disciplined.

We shall walk together on this path of life, for all things are part of the universe and are connected with each other to form one whole unity.

The human hand allows the mind to reveal itself.

Mental development must be connected with movement and be dependent on it. It is vital that educational theory and practice should be informed by that idea.

The greatest sign of success for a teacher...is to be able to say, "The children are now working as if I did not exist."

The ancient saying, "There is nothing in the intellect which was not first in some way in the senses," and senses being explorers of the world, opens the way to knowledge.

Only practical work and experience lead the young to maturity.