Music is one of my big interests - I once had a rather fanciful ambition to be a singer - and of course music is philosophically fascinating. What it is for music to express emotion strikes me as one of the most difficult questions - it's hard to say what it precisely means, although it plainly does mean something. But whenever I have tried to say something about this, it has come out as either banal or pretentious or both.

There's that great Irish joke: a man is lost in the countryside, stops a passer-by: 'how do I get to Dublin?'. The passer-by says 'well, I wouldn't start from here'. Rather than starting by talking in the abstract about materialism, dualism, 'material stuff' and things like that in regard to the mind, I would rather start from somewhere else.

I think we atheists should tolerate the religious not because their views are just as valid as ours, but because experience has shown that we are unlikely to convert them, and so we have to find some way to live in peace with them, even if we find their views false or otherwise objectionable.

I do think it's important to distinguish between intentionalism about consciousness and externalism about consciousness. Intentionalism says that consciousness is a form of intentionality - the representation of things to the mind. Externalism says that these things have to exist in order for them to be represented, or presented. These are different views.

I'm not a militant atheist, just an atheist. In fact, in a largely atheist country like the UK I think it's a bit silly to be a militant atheist.

We have no proper understanding of the relationship between conscious thought and conscious sensation. The various forms of thought and sensation are underpinned by very different neural mechanisms; so how can the neural correlate of their conscious natures be the same? I don't think we are yet in a position to make such speculations. To make progress, we have to have a good conception of the phenomenology of consciousness, among other things.

Would it be better if religions were to disappear? I have no idea. Since I do not have any confidence in the association of truth with virtue, I am not sure if the world would be a better place if people believed more true things. But what is undeniable is that we cannot understand our own culture unless we recognise that it was formed, for good or bad, as a Christian culture. It's an illusion that we could somehow recover a human essence which is independent of the way it was created by culture.