Where can I find the source for a quotation?

The Quotations Archive 

    All the quotations that fit the guidelines are stored at a publicly 
    available ftp site: wilma.cs.brown.edu:pub/alt.quotations/Archive. 
    In the future there will be an organized index system. Right now, 
    just the raw postings are available. 

    The quotes are grouped primarily by subject, but there are indexes 
    by author, keyword, type of source (movie, play, book), and 
    meta-subject (humor is a meta-subject, humor-about-cars is a 
    subject). 

    Movie and television quotes have a tendency to mean nothing to 
    people who haven't seen the show, and bring back fond memories to 
    people who have. That doesn't make them real quotations, but since 
    they are so popular, a part of the archive will be set aside for 
    these media related quotes. 

    The index is labeled either ``exact'', or ``incomplete''. If you 
    can give the exact wording to a quote marking ``incomplete'', 
    please write jgm@cs.brown.edu. We are trying to keep paraphrasing 
    to a minimum.