Education has no more serious responsibility than the making of adequate provision for enjoyment of recreative leisure not only for the sake of immediate health, but for the sake of its lasting effect upon the habits of the mind.

Giving and taking of orders modifies actions and results, but does not of itself effect a sharing of purposes, a communication of interests.

Adequate control means that the successive acts are brought into a continuous order; each act not only meets its immediate stimulus but helps the acts which follow.

Every teacher should realize the dignity of his calling.

Men have never fully used [their] powers to advance the good in life, because they have waited upon some power external to themselves and to nature to do the work they are responsible for doing.

Scientific principles and laws do not lie on the surface of nature. They are hidden, and must be wrested from nature by an active and elaborate technique of inquiry.

Understanding one another means that objects, including sounds, have the same value for both with respect to carrying on a common pursuit.