This volume is the acknowledged masterpiece of [the author], who shares with Ortega y Gasset the distinction of being Spain's most influential philosopher. Here, the reader will find the inner contradictions of a modern human being set down with great respect for truth...

[The author] is in the tradition of the great Spanish saints and mystics who devoted their lives to exploring the kingdoms of faith. [This book] is a "direct expression of the strife between the truth thought and the truth felt".

"Masterfully written with the author's strong personality emerging from every page," – New Haven Journal-Courier

"A great Spanish classic," – World Alliance Newsletter

Opposites attract.