Ambrose of Milan
It is not praiseworthy for individuals to drive away outsiders from the community, especially when it is crucial to offer assistance to them. By denying these individuals the chance to partake in the shared blessings enjoyed by citizens, they reject the established bond of communal life and fail to support those who share in the common struggles of difficult times. While animals do not exile their own kind, humanity often turns against itself. Carnivorous creatures and others view the resources provided by the earth as shared among all, and they even aid their own in the pursuit of sustenance. Conversely, humans, who should recognize that "nothing human is foreign to me," may engage in hostility toward one another.