Although a lot of my work on the mind has been rather abstract and philosophical, I'm interested in psychology and neuroscience and I don't think there are any principled distinctions between the kind of knowledge we get from science and the knowledge we get from philosophy.

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.

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.

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.

One odd thing about the current debate between religious people and atheists is that the participants don't seem to care that they entirely fail to communicate with the other side. They therefore have no account of why the religious or the atheists believe what they do, except that they are stupid or deluded. I think philosophers should try and make sense of their disputes with their opponents as far as possible without treating them as idiots. This applies to the religious participants in the debate as much as to the atheists.

The thing I think I have learned from Wittgenstein is the importance of not making things up: philosophers should not invent problems, and they should also be conscious of the risk of inventing pointless 'technical' machinery which do not offer real explanations, but often just re-state the known facts in a more complex way.

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.