738-word version:
Throughout my AP economics course, no other quotation from either course books or extended reading materials had persisted in my memory more than Mr. 선생님성함`s impromptu comment on knowledge...

766-word version:
Throughout my AP economics course, no text or quote from any source had persisted in my memory more than Mr. 선생님성함`s impromptu comment on knowledge...

830-word version:
Throughout my AP economics course, no other quotation from either course books or extended reading materials had persisted in my memory more than Mr. 선생님성함`s impromptu comment on knowledge: Since the advent of the 20th century, knowledge has been eventuating as the novel success-creating asset...