"This book. is a solid advance in the analysis of the concept of value and its relations with the neighbouring concepts of fact and norm. Thus it affords, I think for the first time, a broad, clear, and yet checkable survey of the casual role of reason in action.The book touches on a great variety of important topics that deserve extensive discussion, for instance, the exact nature of the entire enquiry and its place within the wider field of ethics or the welcome examination of the neglected concept of virtue." - Kurt Baier, The Journal of Philosophy, Vol. 62, No. 1 (Jan. 7, 1965), pp.

17-28 (12 pages).