I've always believed that everything that is said from authority is either the authority of one's own heart, one's own brain, one's own reading, one's own trust, but not the authority of someone who claims it because they're speaking for God and they know the truth because it's written in a book. That, essentially, is where I come from. In a sense, tolerance is my religion. Reason is my religion.

How dare you? How dare you create a world in which there is such misery that is not our fault? It's not right, it's utterly, utterly evil. Why should I respect a capricious, mean-minded, stupid god who creates a world that is so full of injustice and pain?

People sometimes accuse me of knowing a lot. "Stephen," they say, accusingly, "you know a lot." This is a bit like telling a person who has a few grains of sand clinging to him that he owns much sand. When you consider the vast amount of sand there is in the world such a person is, to all intents and purposes, sandless. We are all sandless. We are all ignorant. There are beaches and deserts and dunes of knowledge whose existance we have never even guessed at, let alone visited.

My life, at least, is divided between writing and performing and mixtures of the two.

I used many times to touch my own chest and feel, under its asthmatic quiver, the engine of the heart and lungs and blood and feel amazed at what I sensed was the enormity of the power I possessed. Not magical power, but real power. The power simply to go on, the power to endure, that is power enough, but I felt I had also the power to create, to add, to delight, to amaze and to transform.

It's rather splendid to think of all those great men and women who appear to have presented symptoms that allow us to describe them as bipolar. Whether it's Hemingway, Van Gogh... Robert Schumann has been mentioned... Virginia Woolf, Sylvia Plath... some of them with rather grim ends.

Many people would no more think of entering journalism than the sewage business - which at least does us all some good.