We should never rush into folly just because other nations are practicing it.

One should proceed with caution. We may simply not be wise enough to do some of the kinds of engineering things that people are talking about doing.

There's an ancient tension between wanting to savor the world as it is and wanting to improve on the world as given.

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.

It's a short step from the belief that every child should be wanted to the belief that a child exists to satisfy our wants.

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