The Wisdom of Ben Sira and the Wisdom of Solomon are included in the Septuagint, but not in the Hebrew Bible. For a long time, these books were little read and studied. Today, however, there is a growing interest in them, stimulated not only by the discovery of Hebrew manuscripts of Ben Sira but also by the awareness that both books provide a privileged witness to the judaism in the Hellenistic and Roman periods. Both books invite the reader to recognise that authentic wisdom consists in fear of the Lord and in loyality to the Torah. In addition to this common feature, both express different points of view in the debate in which the Jewish communities of Jerusalem (Wisdom of Ben Sira) and Alexandria (Wisdom of Solomon) were engaged in the face of the rise of Hellenistic culture. These books contain an essential key to the understanding of Judaism at the time and the beginning of Christianity. Professor Maurice Gilbert s.j. has devoted most of his scientific work, first, on the study of the Wisdom of Solomon and, later, on the Wisdom of Ben Sira. The present volume is dedicated to his honour on the occasion of his 65th birthday. It includes thirty-two studies by some of today's authorities on wisdom literature, and may be considered as a major contribution to the understanding of two important books of the Greek Bible.