First published in 1958, this pioneering work demonstrates how sound psychology, purified of its early errors, confirms and enriches Catholic teaching on the nature of man. Offering a clear survey of modern psychological thought, Fr. G. Emmett Carter distinguishes its valid insights from its anti religious biases and shows how authentic maturity arises when psychology is united to Christian truth. Addressing anxiety, character formation, Original Sin, and the workings of the unconscious, he provides practical guidance for personal growth as well as for parents and educators. This thoughtful study reveals how faith and reason together lead to wisdom, stability, and true interior freedom.