He kills Duncan against his better judgment and afterward stews in guilt and paranoia.
There are always potential threats to the throne—Banquo, Fleance, Macduff—and it is always tempting to use violent means to dispose of them.
Characters in Macbeth frequently dwell on issues of gender.
Lady Macbeth, on the other hand, pursues her goals with greater determination, yet she is less capable of withstanding the repercussions of her immoral acts.
One of Shakespeare’s most forcefully drawn female characters, she spurs her husband mercilessly to kill Duncan and urges him to be strong in the murder’s aftermath, but she is eventually driven to distraction by the effect of Macbeth’s repeated bloodshed on her conscience.
Arguably, Macbeth traces the root of chaos and evil to women, which has led some critics to argue that this is Shakespeare’s most misogynistic play.
While the male characters are just as violent and prone to evil as the women, the aggression of the female characters is more striking because it goes against prevailing expectations of how women ought to behave.On the other hand, Malcolm says, “The king-becoming graces / [are] justice, verity, temp’rance, stableness, / Bounty, perseverance, mercy, [and] lowliness” (4.3.92–93).The model king, then, offers the kingdom an embodiment of order and justice, but also comfort and affection.Macbeth, by contrast, brings only chaos to Scotland—symbolized in the bad weather and bizarre supernatural events—and offers no real justice, only a habit of capriciously murdering those he sees as a threat.As the embodiment of tyranny, he must be overcome by Malcolm so that Scotland can have a true king once more.The main theme of Macbeth—the destruction wrought when ambition goes unchecked by moral constraints—finds its most powerful expression in the play’s two main characters.Macbeth is a courageous Scottish general who is not naturally inclined to commit evil deeds, yet he deeply desires power and advancement.Lady Macbeth’s behavior certainly shows that women can be as ambitious and cruel as men.Whether because of the constraints of her society or because she is not fearless enough to kill, Lady Macbeth relies on deception and manipulation rather than violence to achieve her ends.It also suggests that, with Malcolm’s coronation, order will be restored to the Kingdom of Scotland.In the play, Duncan is always referred to as a “king,” while Macbeth soon becomes known as the “tyrant.” The difference between the two types of rulers seems to be expressed in a conversation that occurs in Act 4, scene 3, when Macduff meets Malcolm in England.