来自《哈佛大学公共课-公正：该如何做是好第10集》

If there are to be citizens

若要让一些公民
who are freed from manual and menial and household chores

无需从事体力劳动家务等琐事
to go to the assembly, to deliberate about politics,

得以去集会商议政事
there have to be some who look after those menial tasks;

就必须有人处理这些琐事
the mere necessities of life.

承担生活中必需的劳作
He says, unless you could invent in some science-fiction

他说除非你能发明如一些科幻小说中写的
a technological fix

技术装置
then there are going to be those who have to do

否则就必须有人去从事
the hard and difficult and menial labor

艰苦而繁琐的劳动
if there are going to be citizens deliberating about the good

才能让一些公民能够讨论美德
and realizing their nature.

了解他们的本质
So slavery is necessary

因此为了让公民有机会