Jon Voight: Walkin' the Line In Brad/Angelina Divorce

Jon Voight learned his lesson long ago ... keep your mouth shut about your daughter's business ... or else.

Jon chose his words carefully Friday night as he left Madeo in WeHo, making it clear he's not taking sides in daughter Angelina Jolie's divorce from Brad Pitt.

As you know, she cut him off before when he blabbed. Lesson clearly learned.