All those invited are well-educated people and highly regarded because of their profession. At the first dinner we see specific people attending like the doctor, the psychologist, the mayor, the very young man, Filby and the narrator, all these people are educated as we can see from their conversations. From the first dinner to the second, the returning people include the psychologist, the doctor, and the narrator. Although we don't know much about the narrator, we do know that the psychologist, who is the master of the brain, and the doctor, who is the master of the body, have great importance in this society, proving that the time traveler -even has a fairly tall stature. At this point in the book, it is essential to notice the social class the time traveler comes from, keeping in mind that it will play a key role as the book progresses..