I appear as a skeptic, who believes that doubt is the great engine, the great fuel of all inquiry, all discovery and all innovation.

I don’t have a body, I am a body.

What I used to say to people, when I was much more engagé myself, is that you can't be apolitical. It will come and get you. It's not that you shouldn't be neutral. It's that you won't be able to stay neutral.

If people I've never met or don't know say that what I've written or done or said means anything to them, then I'm happy to take it at face value, for once. It cheers me up.

There are many, many discrepant views within the Shia theology about what's the proper role of religion in society or in the State, should it rule now, should it claim to govern people in the here and now, or should it wait until the Messiah, the 12th Imam, comes back and would it only be then appropriate for religious rule to bring about a world of universal justice and vindication.

Avoid stock expressions (like the plague, as William Safire used to say) and repetitions. Don't say that as a boy your grandmother used to read to you, unless at that stage of her life she really was a boy, in which case you have probably thrown away a better intro. If something is worth hearing or listening to, it's very probably worth reading. So, this above all: Find your own voice.

The beauty of science hugely outranks the charms of superstition.