We owe our existence to our parents, but we actually didn't have a choice.

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.

It's very hard to make arguments about the effects of cloning on family relations if family relations are in tatters.

My job is to provide the president with the richest possible consideration, so that he knows what is at stake in whatever decision he makes.

Our only responsibility is to live our own life and take care of our own children.

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