Guilt is also a way for us to express to others that we are a person of good conscience. 'I feel really guilty about getting drunk last night,' we say, when in actual fact we feel no guilt whatsoever or, at least, we could choose to feel no guilt. When people say to me, 'I drank too much last night,' I always reply, 'I drank exactly the right amount.

As the son of a feminist mother, I grew up with the idea that work was a sort of salvation for women as it would give them freedom from the domestic grind. Now it seems work is a form of slavery, undertaken out of apparent compulsion rather than choice.

I originally welcomed the mobile phone as it seemed to me that it would enable you to work from anywhere. On the mobile, who was to know if you were sitting on the branch of a tree or sitting in an office? But it instead had the opposite effect: instead of freeing us from the office, it allowed the office to take away our freedom.

In a world where you are constantly asked to be 'committed,' it is liberating to give yourself the license to be a dilettante. Commit to nothing. Try everything.

Long weekends at festivals, short weeks at home, all summer long: now that is surely preferable to the immense cost and headache of the nuclear family holiday in the sun?

Facebook is not ideologically neutral. In fact, it emerges from a very particular world view which we can trace back to Hobbes. I discovered this by examining the profile of Zuckerberg's fellow board members who, unlike him, are a very interesting bunch and, I suspect, the real power behind the poster boy.

To me there is no more depressing sight than a five-year-old staring at a screen, unsmiling, mouse in hand. Besides whatever dreadful things this prolonged exposure to screens is doing to their brains, computer games tend to be solitary affairs, and produce little laughter.