In Macbeth, the main character has a significant personal choice to make. After hearing the witches' prophesy, Macbeth is filled with the temptation to become king at any cost. He contemplates murdering King Duncan to take his position as king. Macbeth makes a personal choice to murder King Duncan. He shares this decision with his wife Lady Macbeth. Once Lady Macbeth learns of Macbeth's decision, she becomes obsessed with the idea of murdering King Duncan.
Ironically, Macbeth changes his mind and makes a personal choice to "proceed no further" with the business of murdering King Duncan:
We will proceed no further in this business.
He has recently honored me, and I now have the
Golden opinions from all sorts of people,
Which I want to enjoy for a bit longer, and
Not cast them aside so soon.
Macbeth has decided not to murder King Duncan. The problem is that he shared such an idea with his wife Lady Macbeth who is firmly determined to become the Queen of Scotland. Lady Macbeth has made her own personal choice to follow through with the murdering of King Duncan. She manipulates Macbeth. She insults his manhood. She challenges him to follow through by insulting him and calling him a coward:
Are you afraid
To be the same man in reality
As the one you wish to be? Would you have the crown
Which you believe to be the ornament of life,
And yet live like a coward in your own self-esteem,
Eventually, Macbeth is convinced by Lady Macbeth to follow through with the murdering of King Duncan:
I’m convinced, and I commit
Every part of my body to this terrible event.
Again, Macbeth makes a personal choice to follow through with the murdering of King Duncan. Even though Macbeth is greatly influenced by Lady Macbeth, he makes his own personal choice to see it through.
Eventually, Macbeth murders King Duncan and can only blame himself for being influenced by his wife Lady Macbeth. He makes his own personal choice which ultimately costs him his life. Although Lady Macbeth is responsible for her own actions, Macbeth can only blame himself for not being man enough to resist Lady Macbeth's influence. Macbeth did the wrong thing and murdered King Duncan as a result of his own personal choice.