THE LITTLE BOOK OF ETERNAL WISDOM is among the best of the writings of Blessed Henry Suso, a priest of the Order of St. Dominic, who lived a life of wonderful labours and sufferings, and died in the Fourteenth century with a reputation for sanctity which the Church has solemnly confirmed. Gregory XVI. granted to the whole Order of St. Dominic the privilege of celebrating his office, and of offering the Mass yearly in his honour, appointing the Second of March for his festival. The Order of St. Dominic, known in the Church both as the Order of Truth and the Order of Preachers, so rich in pontiffs, martyrs, and confessors, is also illustrious for its theologians, its ascetic writers, its great masters of the spiritual life. Its mystic theologians stand in the first rank of those who have scaled the wondrous heights of sublime perfection. Not only have they stood on the mountain tops of the spiritual life, but they have pointed out, with a clearness surpassed by no other writers, the path of ascent, marking for the unwary its every danger. The wiles of the enemy are exposed; where, when, and how he seeks to accomplish our ruin. Our defence is first outlined, and then given in detail. The source of strength is pointed out, and thus the perilous journey may safely be made.