Only in the Roman Empire could slavery actually start being a way that you can move up in society, because you could-- if you were a talented slave, your owner might free you, probably would free you.

只有在罗马帝国，奴隶制可以成为,提高社会地位的手段，因为。。。,如果是一个能干的奴隶，主人可能会释放他，很有可能。

耶鲁公开课 - 新约课程节选

Now when this slave is freed, by the owner, the slave could take the peculium with him, and then he could set up his own business, but he'd still be a client of the owner, because he's still officially part of his household.

等到奴隶关系解除时，他可以拿走那些私产，开始自己的生意，但他仍是主人的被庇护人，因为他仍是家户中的一员。

耶鲁公开课 - 新约课程节选