There are some themes, some subjects, too large for adult fiction; they can only be dealt with adequately in a children's book.

What is worth having is worth working for.

For a human being, nothing comes naturally,' said Grumman. 'We have to learn everything we do.

I stopped believing there was a power of good and a power of evil that were outside us. And I came to believe that good and evil are names for what people do, not for what they are.

The book is second only to the wheel as the best piece of technology human beings have ever invented. A book symbolises the whole intellectual history of mankind; it's the greatest weapon ever devised in the war against stupidity.

The justice of it seems to children correct and right - I mean, we laugh at it! We underestimate children's ability to know what is a story and what isn't.

The way you speak of the characters in your story shows what you think of the values of conservatives‚ or evolution, for example. It shows where your moral center is. So you are in the message business whether you like it or not.