Characters: Macbeth, Doctor, and some attendants. A person named Seyton.

Time: Prepare for war.

Location: Dunsinane, a room in the castle.

Events: Macbeth begins by saying to not bring him any reports, unless Birnam wood reach’s Dunsinane. Macbeth is saying that he fears nothing, not even Malcolm. Macbeth begins to insult a scared looking servant who just entered, who came to say 10,000 english soldiers are coming. 
The servant leaves, and then a person named Seyton. The doctor is also in the room, and they begin talking about Lady Macbeth, and her troubles. Macbeth continues to look for some easy way to fix the problems they face, and yet the doctor continues to say he can’t cure the mind. All but the doctor leave, and the doctor says that he regrets ever coming.

Quote:”The mind I sway by, and the heart I bear, Shall never sag with doubt, nor shake with fear.” This is said by Macbeth. What he is most likely speaking about is himself and how he knows he thinks differently to everyone else(He knows he’s mad) and he also knows that he has different values(Murder and treachery is fine.) And he believes he shall never doubt himself, or feel fear again. basically, he believes himself to be lacking in some of the main quality that make us human, and he is happy about it.