A large tawny owl soared down to Neville Longbottom and deposited a parcel into his lap-Neville almost always forgot to pack something.

一只黄褐色的大猫头鹰朝纳威·隆巴顿这边落下来，把一只包裹扔到他的膝盖上——纳威几乎每次收拾行李都丢三落四。

It becomes interesting to ask, for all of these differences, the physical differences like height, but psychological differences like personality and intelligence, how do we parcel it out into what's genetic and what's environmental?

现在有趣的问题是，对于所有这些差异，包括身体差异如身高以及心理差异， 如个性和智力，我们如何划分哪些是基因问题， 哪些是环境问题？