How do advantaged people protect their privileges?

How do behavior and meaning change from person to person and from one situation to another?

How does society divide a population?

How do disadvantaged people challenge the system seeking change?

If I define teacher as a responsible individual who wears fuzzy sweaters and drinks coffee all day, and so I behave that way, then that is an example of which sociological theory in practice?

How is society held together?

What are the major parts of society?

What does each part do to help society work?