YOU SAID:
no other sadness in the world would do
INTO JAPANESE
世界の他の悲しみはしません
BACK INTO ENGLISH
No other sadness in the world
INTO JAPANESE
世界に他の悲しみはありません
BACK INTO ENGLISH
There is no other sadness in the world
INTO JAPANESE
世界に他の悲しみはありません
BACK INTO ENGLISH
There is no other sadness in the world
That didn't even make that much sense in English.