Keep your friends close, but keep your enemies closer. Mario Puzo (1920-1999) American novelist, screenwriter The Godfather, Part II (film) (1974)
MICHAEL: If anything in this life is certain, if history has taught us anything, it is that you can kill anyone. Mario Puzo (1920-1999) American novelist, screenwriter The Godfather (1972) (screenplay with Francis Coppola)