Society reaps what it sows in the way it nurtures its children, because stress sculpts the brain to exhibit several antisocial behaviors. Stress can set off a ripple of hormonal changes that permanently wire a child's brain to cope with a malevolent world. Through this chain of events, violence and abuse pass from generation to generation as well as from one society to the next. Many world leaders who have been disciplined through anger and cruelty go in to treat their own people abominably, or to bully other nations. As long as we continue to discipline children like this, we will continue to have terrible wars on both the family and the world stage. One very powerful study illustrates the point. Researchers tracked down Germans who, in World War II, risked their own lives by hiding a Jewish person in their house. When interviewed, the researchers found one common feature of all these people. They had all been socialized in ways that respected their personal dignity.