I have a general moral: great philosophers may be great, but that is not a reason to follow them. Don't be a follower. Work it out for yourself.

I think you can have a science of the taste of chicken soup, or the taste of Chateau Latour. My point is only that knowing this science alone will not tell you what chicken soup or Chateau Latour tastes like.

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.

Taken as hypotheses, religious claims do very badly. Yet the striking fact is that this does not worry Christians.

I do think that if you are trying to think empirically about the relationship between conscious experience and the underlying physical reality, wine provides an excellent practical example. Winemakers manipulate the chemicals they are dealing with in a way that is very sensitive to the kinds of effects it will have on the subjective experience of tasters - this is not an accident.

Even if we ignore the 'non-theoretical' knowledge which we acquire through experience (such as the knowledge of what something tastes like) and concentrate on theoretical knowledge, there is no good reason to think that physics can literally give the theory of everything. Here I want to be really pedantic. Although everything may be subject to physical law, not everything can be explained or described in physical terms. Physics has literally nothing to say about society, morality and the mind, for example - but of course these are parts of 'everything'.

I like to think of myself as a naturalist - insofar as that term is at all clear.