Stem cell research can revolutionize medicine, more than anything since antibiotics.

You cannot be against embryonic stem cell research and be intellectually and therefore morally consistent, if you're not also against in vitro fertilization.

I wholeheartedly support umbilical stem cell research, but also support embryonic stem cell research.

The refusal to acknowledge the scientific value of embryonic stem cell research is one more tragic misstep.

Embryonic stem cell research has the potential to alleviate so much suffering. Surely, by working together we can harness its life-giving potential.

I'm very grateful that President Obama has lifted the restrictions on federal funding for embryonic stem cell research.