Hao Wang (1921-1995) was one of the few confidants of the great mathematician and logician Kurt G?del. A Logical Journey is a continuation of Wang's Reflections on G?del and also elaborates on discussions contained in From Mathematics to Philosophy . A decade in preparation, it contains important and unfamiliar insights into G?del's views on a wide range of issues, from Platonism and the nature of logic, to minds and machines, the existence of God,...