We should aim for our children to be good people, and to live ethical lives that manifest concern for others as well as for themselves.

The traditional view of the sanctity of human life will collapse under pressure from scientific, technological and demographic developments.

People may hope that the meat they buy came from an animal who died without pain, but they do not really want to know about it. Yet those who, by their purchases, require animals to be killed do not deserve to be shielded from this or any other aspect of the production of the meat they buy.

The future of the world depends on how well we meet it.

Christianity is our foe. If animal rights is to succeed, we must destroy the Judeo-Christian religious tradition.

...the nervous systems of other animals were not artificially constructed - as a robot might be artificially constructed - to mimic the pain behavior of humans. A capacity to feel pain obviously enhances a species' prospects of survival...it is surely unreasonable to suppose that nervous systems that are virtually identical physiologically, have a common origin and a common evolutionary function, and result in similar forms of behavior in similar circumstances should actually operate in an entirely different manner on the level of subjective feelings.

Sci-fi is often a metaphor. I think it's more the themes and questions that science fiction raises rather than the exact predictions that should guide us.