Prof. Gross shared the Nobel Prize, in 2004, in Physics with David Politzer and Frank Wilczek for the discovery of asymptotic freedom in the theory of the strong interaction. With this discovery, Gross, Politzer and Wilczek have brought physics one step closer to fulfilling a grand dream, to formulate a unified theory comprising gravity as well––a unified theory for everything. Although remarkable progress has been achieved in the last decade in understanding the perturbative and non-perturbative structure of String Theory, we still lack a fundamental understanding of the theory. Many string theorists suspect that a profound conceptual change in our concept of space and time will be required for the final formulation of string theory.