I think Lady Macbeth cares about what other people think. We can see that through her behavior towards her husband. She thinks he is unfit to rule because he is weak, and she is constantly trying to make him seem better in other people's eyes. She believes that she would be a much better ruler than him, if she were only a man. She is also trying to distract people from finding out who the real murderer is by fainting and drawing everyone's attention to her so that Macbeth wouldn't confess to his crimes.
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Is there supposed to be a topic for the phrases?
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Ruby pier was his heaven because that was his home and that's where he felt comfortable.
Othello is a man with a noble heart. However, his is a very insecure man.
His main flaw is his insecurity. Being insecure made him vulnerable to Iago's manipulations, he became jealous and gullible. He believed what Iago has been telling him even though it is all a lie.
In the end, his insecurities resulted to his jealousy, driving him to kill his own wife and leading him to his tragic downfall.