“We know next to nothing of what we're going to know in 20 or 50 years.” — Leon Kass

In cloning, in contrast, reproduction is asexual - the cloned child is the product not of two but of one.

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

What does it mean to be an individual? What does it mean to flourish?

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