David Gross is the Chancellor’s Chair professor of Theoretical Physics and former director of the Kavli Institute for Theoretical Physics at UCSB. Gross was previously Thomas Jones professor of mathematical physics at Princeton University. His discovery, with his student Frank Wilczek, of asymptotic freedom led to the formulation of Quantum Chromodynamics, the theory of the strong nuclear force. This completed the Standard Model, which details the three basic forces of particle physics–the electromagnetic force, the weak force, and the strong force. Gross was awarded the 2004 Nobel Prize in Physics for this discovery. He has also made seminal contributions to the theory of superstrings that brings gravity into the quantum framework. With collaborators he originated the “Heterotic String Theory,” the prime candidate for a unified theory of all the forces of nature. He continues to do research in this field at the KITP, a world center of physics.