Shakespeare uses his Aristotelian tragedy, Macbeth, to outline the dangers of unchecked ambition. Rather than explicitly condemning rebellion, Shakespeare allows its psychological and moral consequences to expose its inherent instability, a strategy that subtly reinforces King James’s conviction that any rupture of the Great Chain of Being must collapse as divine justice is served.
In the extract from Act One, Macbeth confides in Lady Macbeth that “I have no spur … but only vaulting ambition”. Shakespeare uses an equestrian metaphor “vaulting ambition” to personify ambition as a driving force behind Macbeth. Through this moment, he tries to construct ambition as uncontrollable, making it appear not heroic but instead toxic. The verb “spur” suggests Macbeth is desperately calling for someone, much like Lady Macbeth, to give him a final push into committing regicide and usurping the crown. The adjective “only” belittles Macbeth’s “vaulting ambition”, which exposes his moral naivety and lack of compassion. This is compounded when Macbeth calls for his ambition to be concealed: “Stars hide your fires, let not light see my black and deep desires”, which suggests Macbeth is addressing cosmic forces. Perhaps this is deliberately constructed to highlight to a Jacobean audience how ambition has corrupted his soul as he turns away from Christian forces. The adjective “black” connotes sin, corrosion, and evil; this suggests that Macbeth is aware of the flaws of his ambition but is willing to continue anyway. Alternatively, an audience could perceive this as Shakespeare explicitly scrutinising the ambition to undermine the Divine Right of Kings, thus warning his audience against usurpation and unnatural ambition. This could also be interpreted as dramatic irony as Macbeth exposes himself to the audience.
Furthermore, in the extract the dangers of ambition are compounded by Shakespeare when Macbeth says it “o’erleaps itself and falls on th’other”. By aligning the imagery of rising and falling with Macbeth, Shakespeare mirrors an Aristotelian tragedy. Additionally, the verb “falls” alludes to Adam and Eve being cast down from the Garden of Eden. This also suggests that the quote is foreshadowing as we know Lord and Lady Macbeth meet a gruesome downfall later in the play as Shakespeare restores divine justice within fictional Scotland. This appears to allude to his moral message suggesting unchecked ambition sows the seeds of its own downfall. Later in the play however, Macbeth becomes increasingly aware of his catalogue of failures as he says “I am in blood stepp’d in so far”. The metaphor of blood encapsulates both violence and moral guilt, showing how ambition has corrupted his soul. Additionally, the verb “stepp’d” suggests deliberate movement, highlighting how he is no longer reliant on his “spur” as ambition possesses his thoughts. Alternatively, “so far” suggests a point of no return. Perhaps Shakespeare includes this to reinforce Christian beliefs to his audience; by suggesting he is at the point of no return, an audience can only infer that this is because of his constant rejection of God and natural order earlier in the play. At this point in the play, Macbeth feels psychologically trapped by his ambition and feels that he must continue his crusade against the Great Chain of Being to be set free.
Ultimately, Shakespeare personifies unchecked ambition as enslaving rather than empowering to implicitly condemn disruption of natural order. This appears to be a direct appeasement of King James I, perhaps securing patronage for Shakespeare. The play gradually reframes ambition as self-destructive rather than heroic, allowing it to indict itself. However, Shakespeare leaves his audience questioning whether Macbeth’s ambition was enough of a spur or whether Machiavellian characters like Lady Macbeth manipulated him.