ABSTRACT
Each group requires more or less radical internal transformation of the persons who comprise it. Consider the metamorphoses that the one man may go through in one day as he moves from one mode of sociality to another-family man, speck of crowd dust, functionary in the organization, friend. These are not simply different roles: each is a whole past and present and future, offering differing options and constraints, different degrees of change or inertia, different kinds of closeness and distance, different sets of rights and obligations, different pledges and promises.
