获得快乐有三种方法。一种是通过目的性很强的多巴胺，去找事情做，比如完成艰难的工作；一种是通过长时间持续锻炼去刺激分泌内啡肽；还有一种是刺激分泌能让大脑觉得单纯快乐的血清素。

I‘m just a woman. And as a woman， I have no way to make money， not enough to earn a living and support my family. Even if I had my own money， which I don’t， it would belong to my husband the minute we were married. If we had children they would belong to him， not me. They would be his property. So don’t sit there and tell me that marriage isn’t an economic proposition， because it is.