The time to talk about it [genetic engineering to improve a baby's genes] in schools and churches and magazines and debate societies is now. If you wait, five years from now the gene doctor will be hanging out the MAKE A SMARTER BABY sign down the street.

The use of fetuses as organ and tissue donors is a ticking time bomb of bioethics.

People ask, 'Is the science going to run ahead of the ethics?' I don't think that's always the problem. I think it's that the science runs ahead of the politics. Bioethics can alert people to something coming down the road, but it doesn't mean policy and politicians are going to pay attention. They tend to respond when there's an immediate crisis. The job of the ethicist, in some ways, is to warn or be prophetic. You can yell loudly, but you can't necessarily get everybody to leave the cinema, so to speak.

Renegade scientists and totalitarian loonies are not the folks most likely to abuse genetic engineering. You and I are-not because we are bad but because we want to do good. In a world dominated by competition, parents understandably want to give their kids every advantage. ... The most likely way for eugenics to enter into our lives is through the front door as nervous parents ... will fall over one another to be first to give Junior a better set of genes.

With terminal illness, your fate is sealed. Morally, we're more comfortable with a situation where you don't cause death, but you hasten it. We think that's a bright line. Comparing the U.S. with Switzerland, where assisted suicide is legal for patients suffering 'intolerable health problems.'

Bodies aren't the same as Coca-Cola cans.

A moral principle in genetic testing is that it should always be done with the consent of the individual. No one wants someone snooping into his DNA.