Our colleague Calestous Juma—who passed away on December 15 at age 64 after a long illness—was a pioneering, prolific, and influential scholar/practitioner in science and technology policy for sustainable well-being. He joined Harvard Kennedy School (HKS) in 1999 as Director of the Science, Technology, and Innovation Project (a joint venture of the Belfer Center for Science and International Affairs and the Center for International Development) and became Professor of the Practice of International Development in 2002, a position in which he maintained his exceptional productivity and engagement with policy, despite illness, up to the time of his death.

"I would urge every scientist and engineer with an interest in the intersection of S&T with sustainable well-being...to 'tithe' 10% of your professional time and effort to working in these and other ways to increase the benefits of S&T for the human condition and to decrease the liabilities. If so much as a substantial fraction of the world's scientists and engineers resolved to do this much, the acceleration of progress toward sustainable well-being for all of Earth's inhabitants would surprise us all."