The point is professionalization. Academics-in-training worry about whether they are yet, can ever be, or even want to be professional intellectuals … - Howard S. Becker

Photographers learn to interpret photographs in that technical way because they want to understand and use that ‘language’ themselves (just as musicians learn a more technical musical language than the layman needs). Social scientists who want to work with visual materials will have to learn to approach them in this more studious and time-consuming way

The dominant tradition in the sociology of art... defines art as something more special, in which creativity comes to the surface and the essential character if the society expresses itself, especially in the great work of the genius.

Even though no one else discovers the nonconformity or enforces the rules against it, the individual who has committed the impropriety may himself act as the enforcer. He may brand himself as deviant because of what he has done and punish himself in one way or another for his behavior.