By doing his share in the associated activity, the individual appropriates the purpose which actuates it, becomes familiar with its methods and subject matters, acquires needed skill, and is saturated with its emotional spirit.

The intellectual content of religions has always finally adapted itself to scientific and social conditions after they have become clear.... For this reason I do not think that those who are concerned about the future of a religious attitude should trouble themselves about the conflict of science with traditional doctrines.

A book or a letter may institute a more intimate association between human beings separated thousands of miles from each other than exists between dwellers under the same roof.

Vocational training is the training of animals or slaves. It fits them to become cogs in the industrial machine. Free men need liberal education to prepare them to make a good use of their freedom.

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.

In general, every stimulus directs activity. It does not simply excite it or stir it up, but directs it toward an object.

Collateral learning in the way of formation of enduring attitudes, of likes and dislikes, may be and often is much more important than the spelling lesson or lesson in geography or history that is learned.