Perhaps you could sympathize with those who seek to replace a dead child with a copy, or to copy a parent or a relative or even a celebrity.

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

Is it possible to covet a much longer life for one's self and be as devoted to the well-being of the next generation? It's a long argument.

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.

The human animal has evolved as a preeminently social animal.

We are somehow natured, not just to reproduce, but for sociality and even for culture.

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