The Harvard Stem Cell Institute (HSCI) convened for its 14th annual retreat on May 21st at Harvard Medical School in the Joseph B. Martin Conference Center. The event was a mix of presentations and panels, with poster sessions and topic tables in the New Research Building’s sunny atrium and courtyard. Around 300 HSCI scientists welcomed keynote speakers Peter Marks, M.D., Ph.D., Director of the FDA’s Center for Biologics Evaluation and Research, and Beth Stevens, Ph.D., Associate Professor, Harvard Medical School, FM Kirby Neurobiology Center at Boston Children's Hospital.