George Molnar came to see that the solution to a number of the problems of contemporary philosophy lay in the development of an alternative to Hume's metaphysics. In this work, which was almost completed when its author died, he developed a thorough account of causal powers and succeeded in producing something both highly focused and at the same time wide-ranging.
Powers is a rich book. In the course of characterising and arguing for a posteriori dualism, Molnar contributes views on most of the important questions about dispositions ... Specialists in the metaphysics of dispositions...will surely value the book for its systematic coverage of the major topics. Non-specialists will also find the book useful, both as an introduction to the central philsophical issues surrounding dispositions, and as an example of a systematic approach to metaphysics.
