This original anthology assembles eleven accessible essays by a giant of modern mathematics. Hermann Weyl (1885-1955) made lasting contributions to number theory as well as theoretical physics, and he was associated with Princeton's Institute for Advanced Study, the University of G ttingen, and ETH Zurich. Spanning the 1930s-50s, these articles offer insights into logic and relativity theory in addition to reflections on the work of Weyl's mentor,...