YOU SAID:
An old mans horse is no faster than the old man is willing to go
INTO JAPANESE
老人の馬は老人が進んで行くよりも速くない
BACK INTO ENGLISH
Old man's horse is not faster than old man's going
INTO JAPANESE
老人の馬は老人の行くより速くない
BACK INTO ENGLISH
Old man's horse is not faster than old man's go
INTO JAPANESE
老人の馬は老人の行くよりも速くない
BACK INTO ENGLISH
Old man's horse is not faster than old man's go
That didn't even make that much sense in English.