Every time you consider a job, you have to check in with your inner compass and say, ‘Does this fit in with how I see what the work is for? Is this going to be something interesting and valuable to contribute to the world?’

What le Carré is so good at is unpicking something very specific about Englishness. That is almost part of why I think he wrote the novel. You can feel le Carré's anger that someone who has had the benefits of an English education and an English upbringing is using that privilege to basically do the worst things imaginable. There is an anger in the book about that.

Since my education, I've done quite untraditional things. There are very few Etonians who went to Rada. And far fewer Etonians - certainly when I was there - went to Cambridge. I don't know whether it's the same now. Most people I knew went to Oxford, because it seemed more of an easy bridge.

As a citizen, you have a duty to ask what is true and what is false.

Love your life. Because your life is what you have to give.

The character, as written on the page, is just a blueprint for a human being.

The 60s had completely changed how people conceived of their lives and their habits and their identities.