"Authority poisons everybody who takes authority on himself " [Leninthis, 271], this quotation applies to Shakespeare's Macbeth. In the play, Macbeth commits regicide; the most heinous of all crimes in Elizabethan times, in order to become king himself. However, during his rule, Macbeth demonstrates that he is incapable of mastering the power and qualities of being a king. His drive for power and maintaining his power is the source of his downfall. Macbeth's obsession with power fuels him to his mental deterioration. He is not meant to have authority beyond Thane of Cawdor. When Macbeth is king, he does not use his authority judiciously.

Macbeth's eventual demise is by virtue of his obsession for power and retaining his power. Before he desired the power of being king, Macbeth was a respected noble called a "valiant cousin!" and a "worthy gentleman"

[Macbeth, I, ii, l: 25, p.13]. He was labeled, "brave Macbeth" [Macbeth, I, ii, l: 18, p.13] for his actions in battle. During a conversation between Duncan and a soldier, the soldier describes how Macbeth brutally slew the rebel Macdonwald:

"Disdaining fortune, with his brandished steel,

Which smoked with bloody execution,

In his speech, the soldier describes Macbeth's violence to indicate qualities as a good warrior, thus showing that he has respect for Macbeth. There can be no doubt that Macbeth had entertained the possibility of being King some day, "My thought, whose murder yet is but fantastical" [Macbeth, I, iii, l: 149, p.29]. His success in battle would serve to intensify his ambitious hunger for power. Once Macbeth became king, he became overpowered with keeping his authority. Macbeth realized that he was being used just so that Banquo's sons can inherit the throne:

As Macbeth's mental health deteriorates, he develops un-kingly qualities such as overconfidence, paranoia and loss of reasoning, as a mechanism to regain control and power. His overconfidence comes from the witches' three prophecies, which is their intent, "As by strength of their illusion, / Shall draw him on to his confusion" [Macbeth, III, vi, l: 28-29, p.155-156]. "The temptation was implicit in the prophecy" [Sisson, 14]. Macbeth becomes paranoid, irrational and unwilling to think through his decisions exclaiming, "The very firstlings of my heart shall be / the firstlings of my hand" [Macbeth, IV, i, l: 161-162, p.177]. He suspects that Macduff is against him with knowledge that Macduff went to England. Instead of dealing with Macduff, Macbeth orders the murder of his family; thus, demonstrating his loss of common sense. Killing Macduff's family does not accomplish anything but add to Macduff's hatred towards Macbeth. It is also evident that Macbeth has lost reasoning when he states: "Bring me no more reports, let them fly all. / Till Birnam wood remove to Dunsinane" [Macbeth, V, iii, l: 1-2, p.223]. Throughout this act Macbeth is overconfident; he keeps on repeating the witches' prophesies. "These apparitions give Macbeth, who regards their words whilst remaining blind to themselves, not despair, but hope" [Wilson Knight, 151]. Macbeth does not become alarmed until he hears that Birnam wood is moving, then he relies on the second prophesy that "none of

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