描述Lady Macbeth的性格。 
Lady Macbeth is a complex and multi-faceted character, who exhibits a wide range of traits and emotions throughout the course of the play Macbeth. At the beginning, she is presented as a determined, ambitious and ruthless person, who is willing to do whatever it takes to achieve her goals. She is a master manipulator and uses her persuasive skills to convince her husband to commit murder. 

However, as the play progresses, we see a different side to Lady Macbeth's character. The guilt and remorse she feels over the terrible deeds she has been involved in, begin to weigh heavily on her, leading to sleepwalking episodes and ultimately, to her descent into madness. 

In contrast to the brave and unflinching façade she presents to the world, Lady Macbeth is also revealed to be vulnerable and deeply troubled. Her relationship with her husband is complex and fraught with tension as she struggles to maintain control, while he becomes increasingly erratic and paranoid. 

Overall, Lady Macbeth's character can be described as a study in contradictions, as she exhibits both strength and vulnerability, determination and doubt, ruthlessness and guilt.