我看不起那些吃闲饭的人。

I look down on those who eat the bread of idleness.

我们必须减少吃闲饭的人。

We must keep down the number of useless mouths.

我们的大脑憎恨空虚，而且从不吃闲饭，就算只有不到十分之一秒。

The brain hates emptiness and never stays idle, even for a tenth of a second.