answer: #Person1# and #Person2# are talking about their richest classmate who didn't study well.
documents: #Person1#: He has a long head, I bet he will do well in his business.
  #Person2#: He does, he started five years ago and now ends up the richest among us.
  #Person1#: When we were students, he was no good in any subject.
  #Person2#: It seemed to be useless to study well when we were young if we examine his case.