Cuban leader Fidel Castro gave Jack Nicholson one of his most valuable life lessons - when he told the movie star to shut up. The actor was visiting Castro with girlfriend Rebecca when the bearded president offered him a few words of wisdom. Nicholson recalls, "He took me aside, pointed over to my girl...and he said to her, 'You learned much more at this meeting than Jack or I did, because all we did was talk. You listened.' "I looked at him and thought, 'You slick Latin bastard. You had to wait until the end to put the s**t out there.' And, God, she was incapable of not falling apart on the spot. "But I like the way this man summed up the meeting - you don't learn much when you're talking."