answer: Jerry admires Diana because she's happy and can achieve high scores at school. Diana encourages Jerry he can get high marks if spending more time cracking the books.
documents: #Person1#: I really admire you, Diana. 
  #Person2#: why, Jerry? Your words just came out of the blue. 
  #Person1#: you are really happy and able to achieve high scores at school. 
  #Person2#: I work very hard and that's it, you know, practice makes perfect. 
  #Person1#: isn't there anything else? 
  #Person2#: I have no idea. 
  #Person1#: you must have a high IQ score. 
  #Person2#: well, Jerry, let me tell you a secret. 
  #Person1#: go ahead. 
  #Person2#: my IQ score is slightly above average. 
  #Person1#: seriously? But you are such a genius. 
  #Person2#: maybe I've got a higher EQ. I'm not sure. 
  #Person1#: well, perhaps you're right. Sometimes EQ matters more than IQ. 
  #Person2#: you can say that again, Jerry. And I'm sure you're high in both of them. With a little more time cracking the books, you can also get high marks. 
  #Person1#: oh, thank you. I'm going to the library, are you coming? 
  #Person2#: let's go!