This is a volume of essays and reviews that delightfuly explore mathematics in all its moods - from the light and the witty, and humorous to serious, rational, and cerebral. Topics include: logic, combinatorics, statistics, economics, artifical intellligence, computer science, and applications of mathematics broadly. You will also find history and philosophy covered, including discussion of the work of Ulam, Kant, and Heidegger among others.