In Book III of 'A Course in Religion,' Fr. John Laux, M.A. explains the basic elements of Catholic moral teaching. Written for High Schools and Academics and originally published in 1928, it has been divided into four parts - The Mystery of the Trinity, The Means of Grace, General and Special Christain Moral, and Apologetics. Readers who familiarize themselves with these topics will gain an excellent knowledge of Catholic moral principles and an intelligent understanding of his duties in life.