Cloning looks like a degrading of parenthood and a perversion of the right relation between parents and children.

In the case of abortion, one pits the life of the fetus against the interests of the pregnant woman.

Many people recognize that technology often comes with unintended and undesirable side effects.

Cloning represents a very clear, powerful, and immediate example in which we are in danger of turning procreation into manufacture.

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.

Biology, meaning the science of all life, is a late notion.