A Chinese proverb reminds us that "the waxing and waning of all things are dictated by the laws of nature." Similarly, our moral likes and dislikes, as intense as they may appear at the moment, will dissipate and give way to the more fundamental principles that govern our behavior. The stem cell controversy is no exception. With time, emotional arguments based on contemporary cultural fashions will fade, and people will go on with the usual business of making their lives better.
Bruce Lahn, PhD, is an HHMI assistant investigator and an assistant professor in the departments of Human Genetics, and Molecular Genetics and Cell Biology.