Western Philosophy, as it has been done for more than two millennia, is the partner of all advancing disciplines. My book is about the contributions philosophy has made, and continues to make, to our civilization. Our natural science, mathematics and technology, our social science, political institutions, and economic life, our culture, religion, morality, and our understanding of ourselves have been shaped by philosophy.
Philosophy never advances against a background or rank ignorance. It flourishes when enough is known about some domain to make great progress conceivable, despite being temporarily stymied because new methods are needed. Philosophers help by giving us new concepts, reinterpreting old truths, and reconceptualizing questions to expand their solution spaces. Sometimes they do this when sciences are born, sometimes they do it as sciences mature. As human knowledge advances there is more, not less, for philosophy to do. Our knowledge of the universe and ourselves grows like an expanding sphere of light emanating from a single point. As light travels in all directions away from its source, the volume of the sphere, representing our secure knowledge, grows exponentially. But so does the surface area of the sphere, representing the border, where knowledge blurs into doubt bringing back methodological uncertainty. Philosophy monitors the border, ready to help plot our next move.