Man's Life is a Group-Life: 

(i) It is correct to say that 'Man's Life is a Group-life,' Man is born in a group, brought up in a group, plays in a group, even learns in a group, progresses in a group and generally dies in society again a social group.

(ii) We all live in society and are bound together through certain norms, values, customs and practices. "We very often say that we belong to a society, and as members we share certain traditions, historical experiences - These experiences may be painful or full of pleasures. All these experiences are transmitted to us by the previous generations or the groups of the people. 

(iii) No individual can fulfil all his requirements without society or social groups. Division of labour is also possible in a group. Some members of a group have to produce food, others have to weave clothes, some have to erect houses, and so on and so forth.

(iv) If a man is united to fulfil his needs, he is also at war with others (in a group) in certain other contexts.

Thus, in a society where we see so many groups, there is consensus on the tasks to be performed for survival but there is also competition/conflict to have greater share in available resources which are scarce.

(v) Sociology is the study of social relations. It is primarily concerned with social groups. A man cannot be social by himself unless he has previously lived with others. Man's life is to an enormous extent a group life. The groups we belong to are not all of equal importance to us.

(vi) Some groups may tend to influence several aspects of Man's life and bring him or her into personal and familiar association with others.