It has been tempered in a celestial fire in ether, and it was the ether of the ethereal heavens that had always been thought -throughout the Renaissance and long before, of course -- to be the most perfect substance imaginable.

它是在广阔苍穹的天国之火中被锻造出，也是飘渺的天堂中的以太,不断地被提及,-贯穿于文艺复兴的始终，当然--是可想见的最完美的物质。

耶鲁公开课 - 弥尔顿课程节选