YOU SAID:

if the fool would persist in his folly he would become wise

INTO JAPANESE

愚か者は自分の愚かさに続くだろう彼は賢明になります。

BACK INTO ENGLISH

Fools followed my stupidity would he looks wise.

INTO JAPANESE

愚か者は自分の愚かさをその後彼は賢明だと思います。

BACK INTO ENGLISH

I think fools their stupidity then he is smart.

INTO JAPANESE

愚か者は自分の愚かさ、彼はスマートだと思います。

BACK INTO ENGLISH

Fools think their own stupidity, he is smart.

INTO JAPANESE

愚か者は自分の愚かさを考える、彼はスマート。

BACK INTO ENGLISH

Fools think their own stupidity, he is smart.