How we need interdisciplinary studies in our era where specialization easily leads to narrow-mindedness! Particularly, this can be so when many philosophers lack a knowledge of sound psychology and many psychologists lack a knowledge of sound philosophy. James Harold’s book, Rationality within Modern Psychological Theory: Integrating Philosophy and Empirical Science, is a masterful synthesis to overcome this syndrome. Academic enough to appeal to other professors, it is written in a style sufficiently popular to make it an ideal textbook for university students as well as for all other intelligent readers.

Ronda Chervin, Holy Apostles College and Seminary

What does it mean to be a human person?This is essentially and above all a philosophical question.And so psychology as an empirical-natural science, while it can tell us a lot about the human person, cannot tell us everything, and not the most important things.We need to broaden out and expand the reach of psychology through philosophy.Here is a book that does this, a wonderful blending of psychology and philosophy by bringing the two disciplines into a fruitful and harmonious relationship with each other.A must-read for anyone interested in what it means to be a human person, a book for both psychologists and philosophers.

Stephen D. Schwarz, University of Rhode Island

Rationality withinModern Psychological Theory fully deserves careful study: Harold shows convincingly that besides many empirical methods and parts of psychology, there are important areas of this discipline that are based on logos and akin to philosophy, or even philosophical in nature. To the degree the author’s many profound yet simple and accessible insights will be accepted and integrated in psychology, one can expect a significant reform of the field: A logos-based psychology that contributes to a true understanding of happiness and acknowledges that a person can only be happy to the extent he loves and is loved. Harold sees the culmination of this fulfillment and happiness in a saint, who reaches authentic happiness, however atrocious his sufferings or martyrdom may be.

Josef M. Seifert, International Academy of Philosophy-Instituto de Filosofía Edith Stein (IAP-IFES)