I made an awful mess of my first marriage. It was hard to live with me being me. I was so abnormal. I mean, most writers struggle. I hadn't struggled. I couldn't suddenly go down to the PEN Club and behave like a normal human being, because most of those guys were struggling to make a couple of thousand pounds a year.

I made an awful mess of my first marriage. It was hard to live with me being me. I was so abnormal. I mean, most writers struggle. I hadn't struggled. I couldn't suddenly go down to the PEN Club and behave like a normal human being, because most of those guys were struggling to make a couple of thousand pounds a year.

Love is whatever you can still betray. Betrayal can only happen if you love.

It's necessary to understand what real intelligence work is. It will never cease. It's absolutely essential that we have it. At its best, it is simply the left arm of healthy governmental curiosity. It brings to a strong government what it needs to know. It's the collection of information, a journalistic job, if you will, but done in secret.

I wrote 'The Spy Who Came in from the Cold' at the age of 30 under intense, unshared personal stress and in extreme privacy. As an intelligence officer in the guise of a junior diplomat at the British Embassy in Bonn, I was a secret to my colleagues, and much of the time to myself.

Most people like to read about intrigue and spies. I hope to provide a metaphor for the average reader's daily life. Most of us live in a slightly conspiratorial relationship with our employer and perhaps with our marriage.

Novelists are not equipped to make a movie, in my opinion. They make their own movie when they write: they're casting, they're dressing the scene, they're working out where the energy of the scene is coming from and they're also relying tremendously on the creative imagination of the reader.

I think, increasingly, despite what we are being told is an ever more open world of communication, there is a terrible alienation in the ordinary man between what he is being told and what he secretly believes.

The Secret Intelligence Service I knew occupied dusky suites of little rooms opposite St James's Park Tube station in London.