What does he say about the different reactions of people when they are robbed?
The thief says that people react differently to being robbed based on their nature. A greedy man shows fear, a rich man shows anger, and a poor man shows acceptance.
He also notes that it is easy to rob a greedy man because he can afford to be robbed. However, it is difficult to rob a careless man because he might not even notice the theft, which takes all the pleasure out of the work for the thief.
Explanation
The question asks for the thief's observations on how different people react to robbery. The text explicitly states the thief made a study of men's faces when they lost their goods, categorizing their reactions as fear (greedy), anger (rich), and acceptance (poor). Additionally, he reflects on the ease of robbing a greedy man versus the difficulty and lack of satisfaction in robbing a careless man who doesn't notice the loss.