the perspective of what's it for,

从它为什么而存在的角度
can often give you interesting insights as to its current nature.

你会在它现有的本性中发现有趣的见解
And I'll give you two quick examples,

我会给你们两个简单的例子
one that's not from psychology, one that is.

一个不是心理学上的一个是
Women suffer--Often women who are pregnant

通常怀孕的女性
early in their pregnancy suffer from morning sickness,

在怀孕的早期会有晨吐反应
nausea, throwing up and so on.

恶心呕吐等等
This has traditionally been viewed as just a breakdown in the system--

一般这会被认为是系统失调
too much hormones, everything's askew;

太多的荷尔蒙什么都不正常了
women get nauseous.

所以女性会感觉恶心
Margie Profet suggested an alternative

玛姬·普罗费则提出了不同的见解
and this won her the MacArthur Genius Award.

这让她获得了麦克阿瑟天才奖