学习计量经济学的最佳方法是通过实践——处理真实的数据和真实的问题。
儿童对活动的需要几乎比食物的需要更为强烈。
唯一的出路就是穿过它。
"No man really knows about other human beings. The best he can do is to suppose that they are like himself."
"Dreams don't work unless you do."