The meaning is right, the translation accurate, but the word order, though acceptable, far from the best (I would suggest "δεν υπάÏχει τίποτα που μποÏείς να κάνεις εσÏ, ο άνθÏωπος" or "δεν υπάÏχει τίποτα που εσÏ, ο άνθÏωπος, μποÏείς να κάνεις".
The human being is, really, "το ανθÏώπινο ον" but we hardly use it do we?
Thanks, Irini. I didn't really understand the context of the translation, but your correction makes sense. I have changed it to the second option you have given (it sounded better to me).