"Never hate your enemies. It affects your judgment." These are lines from which movie?
Michael Corleone (Al Pacino) in "The Godfather Part III" (1990) is seen as a man of astute words, fair judgment, and one who believes in a 'strict business" ideology. In the film, it is Michael Corleone is who is heard saying: "Never hate your enemies. It affects your judgment." He is talking to Andy García as Vincent Corleone.
Corleone is using the words to say that if a man hates his enemies, then it affects his judgment to act reasonably. It will make him biased. Michael thinks the person will never be able to give the right verdict to his enemy even when innocent. For a Don like Michael Corleone, results can't go against his core principles. When a man totally hates his enemies he will not be able to observe the imperfections he himself carries. Being unaware about negatives gives an undue advantage to an enemy.
Despite an elaborate plot that involves Michael seeking redemption through the Vatican while simultaneously preparing his nephew (Vincent) to take over the Corleone family, the film is trying to give a meaningful experience on how one might live a good life. Here, Pacino is very moving as an elder Michael, filled with regret; he is trying hard to make amends with his wife (Diane Keaton) and the grown children.
"The Godfather Part III" is a crime film, written by Mario Puzo and Francis Ford Coppola. It was directed and produced by Coppola. A sequel to "The Godfather" (1972) and "The Godfather Part II" (1974). It completes the story of Michael Corleone.