第一课的5个结论
1, 不要选择劣势策略；Don't play a strictly dominated strategy;
2, 人是自私的；Yale students are evil;
3, 理性选择导致次优结果；Rational choices can lead to bad outcomes;
4, 学会换位思考；Put yourself in other people's shoes;
5, 汝欲得之，必先知之；Fingure out what you want before you try and get what you want;
