I think William Shakespeare's like a passport through your life: as a kid hearing about a play with fairies or witches or ghosts, you get excited by that possibility. Then later on you become interested in the psychology or the politics or the beauty of the language. You grow up with the plays. King Lear is one that I don't feel grown up enough to do yet.

By the time I came of age and, indeed, Margaret Thatcher became prime minister, I had seen the entire William Shakespeare canon, which, in those days, you were quite able to do. Now, it's a much harder thing. Mrs. Thatcher was really axing public subsidy for the arts.

Sometimes it can get overburdened with nuance - the actors find all sorts of different spins on the lines that can lose simplicity and directness. They all become fond of their extra stresses and the audience are going, "Just give me the line simply, what did you mean?" You have to ward against that.

My first interaction with William Shakespeare was an American production and there was an actress, playing Puck, who sounded like Mickey Mouse. When she said, I'll put a girdle around the earth in 40 minutes," I was amazed - the idea of Puck traveling around the Earth in 40 minutes was amazing to me. My dad, who was a scientist, I remember him telling me that Sputnik circled the globe in an hour in a half. And I thought, "Wow, Puck is twice as fast as Sputnik."

What's depressing, in a way, thinking of Margaret Thatcher legacy - and she was no doubt great in many ways - but the arts in the UK are still having to justify that it is a profitable business rather than a frivolity. It's one of the greatest UK exports, one of the reasons people come to the UK, and yet we're still having to justify our existence in terms of funding.

I don't think Vladimir Putin goes to the theater enough to even deign to think there was any criticism intended. We were invited by Moscow. Maybe they wanted a particular production of Julius Caesar in order to remind Putin that he was vulnerable, but that wasn't our intention.

I was doing an interview with Charlie Rose and he said, "What do you think about Margaret Thatcher?" - and I had not heard she had died at this point - and he said, "Is there any kind of Shakespearian overtone here?" I said, "Well, actually, Julius Caesar, because ever if a politician was stabbed in the back, it was Mrs. Thatcher, by all her conspiratorial cabinet, which really did just stab her in the back." It's a rather interesting resonance.