Quote by Stephen Hawking
In Britain, like most of the developed world, stem-cell research is regarded as a great opportunity. America will be left behind if it doesn't change policy.
Summary
This quote suggests that in Britain, as well as other developed countries, there is a positive outlook regarding the potential of stem-cell research. It also implies that America's current policy inhibits its progress in this field. The quote emphasizes that if America fails to alter its policies, it will be surpassed by other countries in terms of advancements and opportunities related to stem-cell research.