There are areas of philosophy that are important, but I think of them as being subsumed by other fields. In the case of descriptive philosophy, you have literature or logic, which, in my view, is really mathematics.

Scientists don't read theology; they don't read philosophy. It doesn't make any difference to what they're doing - for better or worse, it may not be a value judgment, but it's true.

Philosophy used to be a field that had content, but then 'natural philosophy' became physics, and physics has only continued to make inroads. Every time there's a leap in physics, it encroaches on these areas that philosophers have carefully sequestered away to themselves, and so then you have this natural resentment on the part of philosophers.

Education is far less about a set of facts than a way of thinking, than learning how to critically think. And therefore, what I always think should be the basis of education is not answers but questions.

Obama sees himself as such a huge change that he can be cautious about other societal changes. But what he doesn't realize is that legalizing gay marriage is like electing a black president. Before you do it, it seems inconceivable. Once it's done, you can't remember what all the fuss was about.

Our brothers and sisters in the trans community, they showed up to every one of our marriage marches when it wasn't necessarily what they needed. So we have to be there for them, use our lessons learned in the marriage fight - how to win when it's difficult, how to change minds that are difficult to change.

My work is mostly about longing, human relationships, science and children - and a little bit about ghosts and reincarnation.

I think it's wonderful when a love story begins with a great deal of romance and affection, passion and excitement, that's how it should be. But I don't necessarily know that it's the wisest thing in the world to expect that it ends there, or that it should, 30 years down the road, still look as it did on the night of your first kiss.