Men live in a community in virtue of the things which they have in common; and communication is the way in which they come to possess things in common. What they must have in common in order to form a community or society are aims, beliefs, aspirations, knowledge - a common understanding - likemindedness as the sociologists say.
John DeweyThere is no common understanding, and no community life. But in a shared activity, each person refers what he is doing to what the other is doing and vice-versa.
John Dewey