但我们必须在这个世界上生活下去，而无论我们做什么——从谋生到对头脑作最微妙的探究，其中都有某种动机或者其他的东西。

But we have to live in this world, and whatever we do, from earning a livelihood to the most subtle inquiry of the mind, has some motive or other.

youdao

迈耶设想如果必须进行其他活动的话，我们将会做什么。

Mayer imagines what we might do if were forced to find other activities.

youdao