YOU SAID:
A mind is a terrible thing to waste.
INTO JAPANESE
心は無駄にひどいものです。
BACK INTO ENGLISH
Mind is terrible waste.
INTO JAPANESE
心はひどい無駄です。
BACK INTO ENGLISH
Terrible heart is useless.
INTO JAPANESE
ひどい心は役に立たないです。
BACK INTO ENGLISH
Terrible heart is useless.
That didn't even make that much sense in English.