If one is seriously interested in preventing reproductive cloning, one must stop the process before it starts.

Human life without death would be something other than human; consciousness of mortality gives rise to out deepest longings and greatest accomplishments.

Genetics is crude, but neuroscience goes directly to work on the brain, and the mind follows.

The abortion controversy is important for what it says about our stance toward procreation and children altogether.

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

If you have easy self-contentment, you might have a very, very cheap source of happiness.

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