AFI #058 Al Pacino as Michael Corleone from The Godfather Part II (1974)

There are many things my father taught me here in this room. He taught me: keep your friends close, but your enemies closer.

- Al Pacino as Michael Corleone from The Godfather Part II (1974)

The bolded line is ranked #58 in the American Film Institute's list of the top 100 movie quotations in American cinema.