According to Seneca, a man’s unique good is “reason”. Man is separated from the animals because humans have reason. If man did not have reason, he would be no better than the animals. Reason helps man decide what is right or wrong, yes or no, day or night, etc. Animals do not have reason. That is what makes them animals.

The Julio-Claudian principate was a period of Roman emperors starting with Augustus and continues with Tiberius, Caligula, Claudius, and lastly, Nero. The Flavian Dynasty had the emperors Vespasian, Titus, and finally, Domitian. These emperors came right after the Julio-Claudian principate.