Imagination is as vital to any advance in science as learning and precision are essential for starting points.

I think as an actor you're always learning, you're always trying to experience more things.

I think my books talk about kids learning to like and respect themselves and each other. You can't write a message book you just tell the best story you know how to tell.

There is only one thing more painful than learning from experience and that is not learning from experience.

The second half of the '60s really was a kind of learning period, in terms of writing, for me.