When walking you see things that you miss in a motor car or on the train. You give your mind space to ponder.

I don't put much faith in the political system because it's a question of how are you going to run capitalism, not how are we going to develop a different system to capitalism.

Guilt is also a way for us to express to others that we are a person of good conscience.

The world's richest half billion people - that's about seven per cent of the global population - are responsible for fifty per cent of the world's emissions.

One aspect of fast London life I have never understood, for example, is the custom of the gym. Why do people go to gyms?

Doing something you enjoy at times of your own choosing and making a living from it: now tell me, is that work?

I've never understood activity holidays since we seem to have far too much activity in our daily lives as it is. Find a culture where loafing is the order of the day and where they don't understand our need to be constantly doing things. Find somewhere you can have a hammock holiday.