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.

Watch the unending activity of the flowing stream or the growing tree. See the breakers of the ocean, the unceasing movements of the earth, the planets, the sun and the stars. All creation is life, movement, work.

The most important period of life is not the age of university studies, but the first one, the period from birth to the age of six.

We cannot create observers by saying 'observe,' but by giving them the power and the means for this observation and these means are procured through education of the senses.

Never help a child with a task that they feel they can complete themselves.

in nature everything is transformed but nothing destroyed.

To give a child liberty is not to abandon him to himself.