Thesis: Though Nelly's intelligence is often questioned in Wuthering Heights, it is her reason that helps her superiors through difficult times.

Summary:

• Nelly has proved her self for some time as an efficeint worker and well skilled nurse.
  
• Her discrepancies against her two employers look normal compared to many of the others in the novel.
  
• Nelly somehow keeps the peace in the dysfunctional interactions of others
• Nelly always makes sense of things for Catherine, especially when the woman is questioning her marriage
• Nelly uses the troubles of her superiors to help gain her confidence as a reasonable person
• Nelly uses her sense to help Catherine when she is mentally ill and keep her calm
• Nelly is superstitious which brings her credibility of reason down
  
• Catherine second guesses herself
• Her disregard for Edgar when Heathcliff comes back is a clear indication that she does not think things through with reason
  
• Catherine is sick from the middle point of the novel on
• She fears she will lose the capacity to reason and sense
• Isabella always makes haughty assumptions that she has more sense than the people around her
• Heathcliff thinks he is the most rational person of all
• Heathcliff uses his quick wit and tongue to persuade Nelly to get Catherine to meet with him
• He is an excellent conversationalist according to Lockwood
• The theme of reversal roles of the servant and the master come into play
• The servants tend to have more sense or more rational than the masters and superiors