The world of education is like an island where people cut off from the world are prepared for life by exclusion from it.

He who experiments must, while doing so, divest himself of every preconception. It is clear then that if we wish to make use of a method of experimental psychology, the first thing necessary is to renounce all former creeds and to proceed by means of the method in the search for truth.

The child is much more spiritually elevated than is usually supposed. He often suffers, not from too much work, but from work that is unworthy of him.

Order is ... the true key to rapidity of reaction.

The first duty of the educator, whether he is involved with the newborn infant or the older child, is to recognize the human personality of the young being and respect it.

Movement, or physical activity, is thus an essential factor in intellectual growth, which depends upon the impressions received from outside. Through movement we come in contact with external reality, and it is through these contacts that we eventually acquire even abstract ideas.

Work is necessary; it can be nothing less than a passion; a person is happy in accomplishment.