What did Atticus say about the mob

The encounter with a "mob" happens when Atticus tells the children he's "going out for a while" and heads downtown. Scout and Jem, along with Dill, decide to go downtown to see what Atticus is doing. They find him sitting in a chair in front of the jail where Tom Robinson is being held. As the children start to return home, several cars arrive and a group of men get out and approach Atticus. The intent of the men is to lynch Tom. It is Scout that stops the men by talking to Mr. Cunningham about his son.
The next day, while discussing the events, Jem comments that he thought Mr. Cunningham was a friend of the family. Atticus replies with, "He still is." He goes on to say, "A mob's always made up of people no matter what. Mr. Cunningham was part of a mob last night, but he was still a man." Atticus believes that as a group, the mob might have been dangerous. However, since Scout was able to appeal to Mr. Cunningham as a father and a resident of Maycomb County, she managed to diffuse a tense situation. Atticus sums up his feelings by saying that the people in an angry mob can be stopped, "simply because they're still human."