I've been surprised by how little criticism I've got. Harry Potter's been taking all the flak. I'm a great fan of J.K. Rowling, but the people - mainly from America's Bible Belt - who complain that Harry Potter promotes Satanism or witchcraft obviously haven't got enough in their lives. Meanwhile, I've been flying under the radar, saying things that are far more subversive than anything poor old Harry has said. My books are about killing God.

But think of Adam and Eve like an imaginary number, like the square root of minus one: you can never see any concrete proof that it exists, but if you include it in your equations, you can calculate all manner of things that couldn't be imagined without it.

On a cold, fretful afternoon in early October, 1872, a hansom cab drew up outside the offices of Lockhart and Selby, Shipping Agents, in the financial heart of London, and a young girl got out and paid the driver. She was a person of sixteen or so--alone, and uncommonly pretty. She was slender and pale, and dressed in mourning, with a black bonnet under which she tucked back a straying twist of blond hair that the wind had teased loose. She had unusually dark brown eyes for one so fair. Her name was Sally Lockhart; and within fifteen minutes, she was going to kill a man.

The first ghost to leave the world of the dead was Roger. He took a step forward, and turned to look back at Lyra, and laughed in surprise as he found himself turning into the night, the starlight, the air. . .and then he was gone, leaving behind such a vivid little burst of happiness.

I told him I was going to betray you, and betray Lyra, and he believed me because I was corrupt and full of wickedness; he looked so deep I felt sure he'd see the truth. But I lied too well. I was lying with every nerve and fiber and everything I'd ever done...I wanted him to find no good in me, and he didn't. There is none.

Tolkien seems to me reactionary, conservative, fearful of a modern world. Fearful of anything that isn't sanctioned by the passage of long eons of time. I think what I'm doing in His Dark Materials is politically the reverse of that.

I feel with some passion that what we truly are is private, and almost infinitely complex, and ambiguous, and both external and internal, and double- or triple- or multiply natured, and largely mysterious even to ourselves; and furthermore that what we are is only part of us, because identity, unlike "identity", must include what we do. And I think that to find oneself and every aspect of this complexity reduced in the public mind to one property that apparently subsumes all the rest ("gay", "black", "Muslim", whatever) is to be the victim of a piece of extraordinary intellectual vulgarity.