We know next to nothing of what we're going to know in 20 or 50 years.

The benefits of biomedical progress are obvious, clear, and powerful. The hazards are much less well appreciated.

Almost everybody is enthusiastic about the promise of biotechnology to cure disease and to relieve suffering.

Technological innovation is indeed important to economic growth and the enhancement of human possibilities.

Once you put human life in human hands, you have started on a slippery slope that knows no boundaries.

We know next to nothing of what we're going to know in 20 or 50 years.

I've been opposed to human cloning from the very beginning.