This small volume, excellent in format and pleasing in the clear tonality of its English translation by Robert C. Healey, is a significant product of the French Catholic Revival. Its title is as a simple as it is profound and indeed it is a guided program for the lay Christian who would integrate his religious beliefs into the main areas of his daily life- his family, his work, and his social and political associations with his fellow humans. The prologue by Daniel-Rope (a pseudonym of a prominent French scholar) is a small gem of homiletics; whereby in the telling of a saint's fable is outlined the secret of the sanctity of anonymous effort. God weighs the soul in the value of its deep intention and the weights are the invincible stuff of humility, justice and charity. This book should have a wide range of influence and interest within and outside the Catholic Church.