At the University of Pennsylvania, Lilly met Professor H. Cuthbert Bazett, a protege of British physiologist J. B. S. Haldane. Bazett introduced Lilly to Haldane's view that scientists should never conduct an experiment or procedure on another person that they have not first conducted on themselves, a view Lilly embraced and attempted to exemplify throughout his career. Bazett took a liking to the young, enthusiastic graduate student, and set Lilly up with his own research laboratory. While working under Bazett, Lilly created his first invention, the electrical capacitance diaphragm manometer, a device for measuring blood pressure. While designing the instrument, he received electrical engineering advice from biophysics pioneer Britton Chance. Chance also introduced Lilly to the world of computers, which was still in its infancy.