In this collection of essays, which were first delivered as lectures at the International Academy of Philosophy in the Principality of Liechtenstein in 1998, distinguished philosopher Peter Geach confronts some of the most difficult issues in philosophy with the precision of a logician and the grace and wit of an accomplished stylist. These essays constitute a significant addition to Professor Geach's esteemed body of work in philosophy, as he addresses not only problems of logic and analytic philosophy, but also of epistemology and ethics. Geach's engaging discussions of human nature, truth, goodness, and love provide probing insight into perennial themes in an appealing, highly readable style which is nevertheless forceful and exacting. Geach knows the subjectivity of his own experience and belief and is able to illuminate that experience and belief by submitting it to a rational and philosophical inquiry. His avowed Catholic perspective is neither a weapon nor a shield. It is an integral part of the sustained, systematic, and constructive approach to philosophy demonstrated in these essays. They will certainly provoke serious reflection even in those inclined to disagree with Geach's conclusions.