"I think we can allow the therapeutic uses of nuclear transplant technology, which we call cloning, without running the danger of actually having live human beings born."

"When are we going to say cancer is cured? I'm not sure when that will happen, if that will happen because cancer is a very slippery disease and it involves a vast number of cells in the body and those cells are continually mutating."

"What does gene A do? What does gene B do? What does it do in different contexts? What's its importance? We know the answer to that for a very small number of genes, the ones that made themselves evident many years ago."

"I think they are looking for publicity and they are looking for a name for themselves."

"There are lots of other issues in policy including the stem cell issue."

"There is actually a fair amount of money being put behind science today."

"The argument has been made in Congress that it is slippery slope if you allow therapeutic, what people people are calling therapeutic cloning, then you will get reproductive cloning."

"When we talk about stem cells, we are actually talking about a complicated series of things, including adult stem cells which are largely cells devoted to replacing individual tissues like blood elements or liver or even the brain."