a work that intends to be art must first be entertaining.

Everything comes in useful once in a hundred years.

As I look back on what I have written, I can see that the very persons who have taken away my time are those who have given me something to say.

Once a book is published, it no longer belongs to me. My creative task is done. The work now belongs to the creative mind of my readers. I had my turn to make of it what I would, now it is their turn.

More than fifty years ago Sputnik dramatically raised the nation's awareness of what was lacking in science and math education in America. What we need to wake people up to now is the crisis in imagination and concern for the greater good.

Death is very mysterious to us. One moment someone is there with us, and the next moment they're not.

Sometimes it seemed to him that his life was delicate as a dandelion. One little puff from any direction, and it was blown to bits.