We can be certain that, if there are conflicting views in different cultures, some of these views must be false. This may help us to transcend our own narrow cultural horizon.

According to deontology it is wrong to kill an innocent human being, period.

Even where people in different cultures agree they may all have gone wrong.

It is obvious, I think, that national democracy withers. This has to do with globalisation.

It is quite possible that we will soon come to live under some sort of global despotism, enlightened or not. This is not a nice prospect. And there is only one way of avoiding that this happens: to establish a global democracy. And it is not too late to strive for such a democracy, of a straightforward populist nature, where people on the globe elect a world parliament, which in turn elects a world government.

It is of note that for a long time moral nihilism was a kind of unquestioned default position in analytic moral philosophy.

If two norms conflict, if they are mutually inconsistent, then at least one of them must be false.