Soliloquy is when a character is on stage by themselves and they are thinking out loud so the audience knows what they are thinking. This is a soliloquy from Macbeth and the one speaking is Macbeth. The quotation: "To plague th'inventor: this even-handed justice" is stating that what goes around comes around in other words karma and is showing that Macbeth needs to create reasons to kill King Duncan so he can feel like he was righteous in his acts.
