translation.en: And I am not saying that understanding cooperation is going to cause us to be better people -- and sometimes people cooperate to do bad things -- but I will remind you that a few hundred years ago, people saw their loved ones die from diseases they thought were caused by sin or foreigners or evil spirits.
translation.zh: 我并不是说了解了合作 会使我们变成更好的人。 有时候人们会一起合作做坏事。 但是你要知道，在几百年前， 人们看见自己亲爱的人死于疾病时， 认为那是由罪恶、外国人或者恶魔造成的。