What metaphors are used in The Twelve Caesars by Suetonius?

The underlying meanings of identity and reputation are explored both literally and metaphorically. Very few of the Caesars die of natural causes. Most are murdered by their family members or close friends. It does seem that the more popular an emperor is and the more accepted his ascension to the throne, the better his reputation. If he remains good and fair to the people of Rome, then he is destined to rule longer and die a natural death. If a leader is not popular, his reign lasts a shorter amount of time than it might have. People plot against them, doing all they can to kill them. However some evil leaders last longer than they should because they terrify the people. When Gaius dies, people are so afraid to rejoice, thinking it a plot to get them to show their true hatred towards him, they pretend like nothing has happened.