What makes one person introverted and another the life of the party? New research suggests social experiences—not just heredity—play a big role. Four months after his wife died of a rapidly progressing leukemia, two Israeli artillery shells crashed into his home, destroying the bedroom shared by his daughters, killing three of them. One of his nieces was also killed in the blast, and several other family members were injured. But the incident, which occurred during the 23-day Gaza War in late 2008 and early 2009, did not cause Abuelaish to seek revenge or embrace hatred against Israel, which has been in conflict with the Palestinians for his entire life.
