In the play "Julius Caesar" by William Shakespeare, Caesar tells his wife Calpurnia, "Cowards die many times before their deaths, the valiant never taste of death but once." Caesar means that a person who lacks courage and is afraid of death experiences the fear and anxiety of dying many times in their life, while a brave person who faces death with courage only experiences it once.
One example of this in the play is when Caesar receives a warning from a soothsayer to "Beware the Ides of March." Although Caesar initially ignores the warning and insists on going to the Senate, he later admits to feeling uneasy and repeatedly asks for updates on the situation. In this sense, Caesar's fear of death causes him to experience it multiple times before his actual assassination on the Ides of March.
Caesar may be right in that a person who lacks courage and is afraid of death may experience the fear and anxiety of dying multiple times, but he could also be wrong in assuming that a brave person who faces death with courage only experiences it once. This is shown in the play by the characters of Brutus and Cassius, who both demonstrate courage in their actions but ultimately meet their own deaths later in the play.