Luigi Struse is an Italian sociologist and philosopher, but, above all, an ardent Catholic, a moving spirit in Catholic Action, the movement which make the Catholic faith dominant in all areas of life and thought. The present is divided into two parts, ""The Quest of the Truth"" and ""The Quest of the first part will be of interest primarily to the philosopher and the second part, could be understood and appreciated by any thoughtful layman with the relationship of inner piety to the outside world, and makes many as to how the average Catholic layman who is neither a nor make his faith come alive in the modern world. Of particular interest in of the influence of certain Italian layman in the modern age, his reading of the New testament, and his interpretation of the which will appeal to the Catholic scholar or intelligent layman, although interested in studying the trends of modern Catholic thought will find.