The speaker mainly discusses________.

Culture can be defined as behavior that is learned and transmitted to members of a group. A child learns a particular behavior through observation as well as through positive and negative feedback from his/her family and peers. A minor point to remember is that this feedback can be overt or covert. Much covert feedback involves nonverbal cues that an outsider to that culture would not understand.

The dramatic critic, on the other hand, has no such advantage. He cannot be selective; he must cover everything that is offered for public scrutiny in the principal playhouse of the city where he works. The column space that seemed, yesterday, so pitifully inadequate to contain his comments on Long Day’s Journey Into Night is roughly the same as that which yawns today for his verdict on the latest scrap of milk-fed Kitsch that has chanced to find for itself a numbskull backer with a hundred thousand dollars to lose.