as to what really makes a face attractive,

怎样才算是迷人的面孔
both within cultures and across cultures.

无论是在一种文化下还是跨文化的
And that's something which we're going to devote some time to

这是当我们谈到社会行为时
when we talk about social behavior,

要花一些时间去讲的东西
and in particular, when we talk about sex.

特别是当我们谈到性的时候
Not all attractiveness, not all beauty of course, is linked to sex.

迷人或是美丽并非仅仅指性
So, pandas for instance,

比如说熊猫
like this panda, are notoriously cute,

像这只熊猫就是公认的可爱
and I don't have anything to say about it really.

关于这我并没有什么可说的
It's just a cute picture .

这只是一张可爱的图片
Morality is extremely central to our lives,

道德在我们生活中是极为核心的
and a deep question, which we will struggle with

我们要在大部分课中探讨的