Complete adaptation to environment means death. The essential point in all response is the desire to control environment.

There is more than a verbal tie between the words common, community, and communication.

Many of the obstacles for change which have been attributed to human nature are in fact due to the inertia of institutions and to the voluntary desire of powerful classes to maintain the existing status.

The school has the function of coordinating within the disposition of each individual the diverse influences of the various social environments into which he enters.

To be interested is to be absorbed in, wrapped up in, carried away by, some object. To take an interest is to be on the alert, to care about, to be attentive.

The deepest urge in human nature is the desire to feel important.

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