Justine, the mother of five of his surviving ten children. “If your father is always calling you a moron and idiot, maybe the only response is to turn off anything inside that would’ve opened up an emotional dimension that he didn’t have tools to deal with.” This emotional shutoff valve could make him callous, but it also made him a risk-seeking innovator. “He learned to shut down fear,” she says. “If you turn off fear, then maybe you have to turn off other things, like joy or empathy.”