This century is widely recognized as the Age of Analysis. A posteriori evidence is accumulating to demonstrate that the next century will be the Age of Synthesis. Synthesis will supplement analysis as a major thrust in our technological society. Synthesis requires a vision to project into the future, and demands a more holistic approach. Synthesis can help reduce the 'two cultures' syndrome. Both natural and unnatural or human-made systems, involving the arts, sciences, the professions, and the applied fields, are discussed, as well as the philosophy of Plato, Aristotle, Kant, and many other recognized philosophers.