I don't think there is such a thing as as a real prophet. You can never predict the future. We know why now, of course; chaos theory, which I got very interested in, shows you can never predict the future.

A hundred years ago, the electric telegraph made possible-indeed, inevitable-the United States of America. The communications satellite will make equally inevitable a United Nations of Earth; let us hope that the transition period will not be equally bloody.

One of the great tragedies of mankind is that morality has been hijacked by religion.

Once you can reproduce a phenomenon, you are well on the way to understanding it.

Only small minds are impressed by large numbers.

But please remember: this is only a work of fiction. The truth, as always, will be far stranger.

The numbers of distinct human societies or nations, when our race is twice its present age, may be far greater than the total number of all the men who have ever lived up to the present time.