YOU SAID:
What do we know of the nature of this world?
INTO JAPANESE
我々 はこの世界の自然のものを知っていますか。
BACK INTO ENGLISH
We know what the nature of this world.
INTO JAPANESE
我々 はこの世界の性質が何かを知っています。
BACK INTO ENGLISH
We know what the nature of this world.
That didn't even make that much sense in English.