I have my doubts. Because the moment you admit your morality is only specific to you or your culture, then it ceases to be a universal morality. And what good is THAT? I've noticed that even among scientific types there is an assumption of a universal good for the human species. To explore the universe. To understand it. And to manipulate it to our own advantage and survival. Surely THIS is not a relative moral aim. It seems to embrace all humans in a common enterprise. Doesn't belief in a moral aim for your life presume its absoluteness in the scheme of things? That there is goodness in order as opposed to random meaningless chaos?