ARW Jan 31th

     In anthropology, there is a term to explain human's exchange: giftedness. If one receive something, he or she have a duty to return or pass it. Rab gave us gifts, but we did not return them. This violation of cultural norm is rude as human in any society and situation.
    I know it is meaningless to show the anthropology term and feeling of guilty. What I should and can do is writing my essay, supporting group members, and returning.