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