Science does have a way of checking itself out. It's harder to get away with a lie in science than it is in life.

It's so tempting and so easy that it can be a lot to ask ordinary human beings who aren't saints not to do it.

They shouldn't have done that. That was wrong.

I think it's not so much a character flaw in people as it is the psychology of the whole experience, ... It's very hard for people to identify with victims and see it as wrong.

There was a lot of concern that work was going to go forward without standardized guidelines.

People need to learn more about [embryonic stem cell research] as arguments become more complicated.

But the regulatory system has been designed for people who want to do the right thing but aren't sure how to proceed.

Right now there really is no oversight of who is doing what with human embryonic stem cells. The hope is that our guidelines will help to create a fairly uniform set of standards from one institution to another.

Although what is being done in 1996 in our emergency rooms bears no moral resemblance to what happened 50 years ago in Nazi, Germany; nevertheless, the issue of voluntary participation in research is a very delicate matter.