“Once you’ve made a decision, don’t turn around and look back at the doors that are closing behind you. Instead, focus on all of the new opportunities in front of you.” That’s the best advice that Wyss Founding Core Faculty member David J. Mooney ever received. Mooney is also the Lead of the Immuno-Materials platform at the Wyss Institute. He is the Robert P. Pinkas Family Professor of Bioengineering at the Harvard John A. Paulson School of Engineering and Applied Sciences. Learn more about Moon