(For his revolutionary contributions to global Riemannian and symplectic geometry, algebraic topology, geometric group theory and the theory of partial differential equations.)
(For pioneering studies on the mode of action of insecticides, design of safer pesticides and contributions to the understanding of nerve and muscle function in insects.)
(For using ultrafast lasers in femtosecond time resolved measurements of the evolution of chemical reactions - thus obtaining the first direct observation of bond breakage in a molecule.)
(For his pioneering and fundamental contributions to the theory of the structure of algebraic and other classes of groups and in particular for the theory of buildings.)