YOU SAID:

He who thinks he can and he who thinks he can't are right!

INTO JAPANESE

自分ができると思う者と、自分が正しいと思う者は正しい!

BACK INTO ENGLISH

Those who think they can do it and those who think they are right are right!

INTO JAPANESE

彼らがそれを行うことができますと思う人と彼らが正しいと思う人は正しいです!

BACK INTO ENGLISH

Those who think they can do it and those who think they are right are right!