I think that this is a perfect example of the entire story of Macbeth. In this one single quote alone it describes everyone's motives in the story other than banquo. In the play every single last person has an ulterior motive to get ahead and to scheme and get gain for themselves. They don't care who they have to climb over or betray they will do it to gain power. For example; when Macbeth gets the men to want to murder Banquo because the witches said that he wouldn't be as happy but happier and he wouldn't be king but he would have sons that were kings. So when Macbeth hears that and thought about it he wanted his sons to be kings rather than Banquo's sons. In my opinion this is a perfect example because everyone in the story has deep dark
