I've been opposed to human cloning from the very beginning.
Leon Kass

Our only responsibility is to live our own life and take care of our own children.
Leon Kass

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

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

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.
Leon Kass

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

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

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