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

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

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

One could look over the past century and ask oneself, has the increased longevity been good, bad or indifferent?

As bad as it might be to destroy a creature made in God's image, it might be very much worse to be creating them after images of one's own.

We are enmeshed in a lineage that came from somewhere and is going to make way for the next generation.

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