Outside of occult or fetish-power, the Roman world was incredibly poor. It knew but one productive energy resembling a modern machine — the slave.

除了神秘学或拜物教的力量之外，罗马世界非常贫穷。它只知道一种类似于现代机器的生产能量——奴隶。

Actually creating the business case for providing tens of millions of people with the productive energy they need to improve the quality of their lives.

实际上创造了商业案例，为数以千万计的人提供他们改善生活质量所需的生产能量。