The supreme task : reality, truth, and the scientific method -- The authorized version. -- White ambassadors of morning : light, quantum theory, and the nature of reality -- The construction of mass : matter, force, and the standard model of particle physics -- Beautiful beyond comparison : space, time, and the Special and General Theories of Relativity -- The (mostly) missing universe : the universe according to the standard model of Big Bang cosmology -- What's wrong with this picture? : why the authorized version of reality can't be right -- The grand delusion. -- Thy fearful symmetry : beyond the standard model : supersymmetry and grand unification -- In the cemetery of disappointed hopes : superstrings, M-theory, and the search for the theory of everything -- Gardeners of the cosmic landscape : many worlds and the multiverse -- Source code of the cosmos : quantum information, black holes, and the Holographic Principle -- Ego sum ergo est : I am therefore it is : the anthropic cosmological principle -- Just six questions : defining the destination at the end of a hopeful journey.