Killed be man, how unthankful he is.
Woe to the human being; he is so unappreciative
Perish the human! How unthankful he is
Woe to man! How ungrateful is he
Killed ('woe') the human/mankind what made him more disbelieving (an expression)
How pity of the ungrateful man
May man be slain – how ungrateful he is
Woe unto man ! How ungrateful he is
Be cursed (the disbelieving) man! How ungrateful he is
Ruin seize the person (- one too proud to accept the reminder)! How ungrateful he is
Be cursed (the disbelieving) man! How ungrateful he is