MURIEL MCCARTHY This volume originated from a seminar organised by Richard H. Popkin in Marsh's Library on July 7-8, 1994. It was one of the most stimulating events held in the Library in recent years. Although we have hosted many special seminars on such subjects as rare books, the Huguenots, and Irish church history, this was the first time that a seminar was held which was specifically related to the books in our own collection. It seems surprising that this type of seminar has never been held before although the reason is obvious. Since there is no printed catalogue of the Library scholars are not aware of its contents. In fact the collection of books by late seventeenth and early eighteenth century European authors on, for example, such subjects as biblical criticism, political and religious controversy, is one of the richest parts of the Library's collections. Some years ago we were informed that of the 25,000 books in Marsh's at least 5,000 English books or books printed in England were printed between 1640 and 1700.

The general view of scholars is that the Kabbalah had no meaningful influence on Leibniz's thought. } But on the basis of new evidence I am convinced that the question must be reopened. The Kabbalah did influence Leibniz, and a recognition of this will lead to both a better understanding of the supposed "quirkiness, 2 of Leibniz's philosophy and an appreciation ofthe Kabbalah as an integral but hitherto ignored factor in the emergence of the modem secular and scientifically oriented world. During the past twenty years there has been increasing willingness to recognize the important ways in which mystical and occult thinking contributed to the development of science and the emergence 3 of toleration. However, the Kabbalah, particularly the Lurianic Kabbalah with its monistic vitalism and optimistic philosophy of perfectionism and universal salvation, has not yet been integrated into the new historiography, although it richly deserves to be. On the basis of manuscripts in libraries at Hanover and Wolfenbiittel, it is clear that Leibniz's relationship with Francis Mercury van Helmont (1614- 1698) and Christian Knorr von Rosenroth (1636-1689), the two leading Christian Kabbalists of the period, was much closer than previously imagined and that his direct knowledge of their writings, especially the collection of 4 kabbalistic texts they published in the Kabbala Denudata, was far more detailed than most scholars have realized. During 1688 Leibniz spent more than a month at Sulzbach with von Rosenroth.

Some scholars in the history of ideas have had a growing interest in examining Leibniz's many discussions ofvarious aspects of religion, Christian, Jewish and far eastern. Leibniz, with his voracious interest and concern for so many aspects of human intellectual and spiritual life, read a wide variety of books on the various religions of mankind. He also was in personal contact with many of those who espoused orthodox and non-orthodox views. He annotated his copies of many books on religious subjects. And he was working on schemes for reuniting the various Catholic and Protestant churches in Europe. Studies on Leibniz's views on Judaism, on the Kabbalah, on Chinese thought have been appearing over the last decades. It was decided by some of us that since there has been a growing interest in this side of Leibniz's thought it would be a good idea to bring together a group of scholars working on different aspects of Leibniz's views on religion, mysticism and spiritualism, in order to h ve them present papers on their current researches, and to have the opportunity for lengthy discussion, formal and informal, in the most pleasant academic ambiance of the William Andrews Clark Library in Los Angeles. Under the sponsorship of the UCLA Center for Seventeenth and Eighteenth Century Studies, a workshop conference was held November 18-19, 1994.

MURIEL MCCARTHY This volume originated from a seminar organised by Richard H. Popkin in Marsh's Library on July 7-8, 1994. It was one of the most stimulating events held in the Library in recent years. Although we have hosted many special seminars on such subjects as rare books, the Huguenots, and Irish church history, this was the first time that a seminar was held which was specifically related to the books in our own collection. It seems surprising that this type of seminar has never been held before although the reason is obvious. Since there is no printed catalogue of the Library scholars are not aware of its contents. In fact the collection of books by late seventeenth and early eighteenth century European authors on, for example, such subjects as biblical criticism, political and religious controversy, is one of the richest parts of the Library's collections. Some years ago we were informed that of the 25,000 books in Marsh's at least 5,000 English books or books printed in England were printed between 1640 and 1700.

Some scholars in the history of ideas have had a growing interest in examining Leibniz's many discussions ofvarious aspects of religion, Christian, Jewish and far eastern. Leibniz, with his voracious interest and concern for so many aspects of human intellectual and spiritual life, read a wide variety of books on the various religions of mankind. He also was in personal contact with many of those who espoused orthodox and non-orthodox views. He annotated his copies of many books on religious subjects. And he was working on schemes for reuniting the various Catholic and Protestant churches in Europe. Studies on Leibniz's views on Judaism, on the Kabbalah, on Chinese thought have been appearing over the last decades. It was decided by some of us that since there has been a growing interest in this side of Leibniz's thought it would be a good idea to bring together a group of scholars working on different aspects of Leibniz's views on religion, mysticism and spiritualism, in order to h ve them present papers on their current researches, and to have the opportunity for lengthy discussion, formal and informal, in the most pleasant academic ambiance of the William Andrews Clark Library in Los Angeles. Under the sponsorship of the UCLA Center for Seventeenth and Eighteenth Century Studies, a workshop conference was held November 18-19, 1994.

The general view of scholars is that the Kabbalah had no meaningful influence on Leibniz's thought. } But on the basis of new evidence I am convinced that the question must be reopened. The Kabbalah did influence Leibniz, and a recognition of this will lead to both a better understanding of the supposed "quirkiness, 2 of Leibniz's philosophy and an appreciation ofthe Kabbalah as an integral but hitherto ignored factor in the emergence of the modem secular and scientifically oriented world. During the past twenty years there has been increasing willingness to recognize the important ways in which mystical and occult thinking contributed to the development of science and the emergence 3 of toleration. However, the Kabbalah, particularly the Lurianic Kabbalah with its monistic vitalism and optimistic philosophy of perfectionism and universal salvation, has not yet been integrated into the new historiography, although it richly deserves to be. On the basis of manuscripts in libraries at Hanover and Wolfenbiittel, it is clear that Leibniz's relationship with Francis Mercury van Helmont (1614- 1698) and Christian Knorr von Rosenroth (1636-1689), the two leading Christian Kabbalists of the period, was much closer than previously imagined and that his direct knowledge of their writings, especially the collection of 4 kabbalistic texts they published in the Kabbala Denudata, was far more detailed than most scholars have realized. During 1688 Leibniz spent more than a month at Sulzbach with von Rosenroth.