A survey of the scholastic debate on the divine Trinity in the period between Aquinas' earliest works and Ockham's death.

Russell L. Friedman is Associate Professor of Philosophy at the Katholieke Universiteit Leuven.

Acknowledgements; Introduction; 1. The Trinity and the Aristotelian categories: different ways of explaining identity and distinction; 2. The Trinity and human psychology: 'In the Beginning Was the Word'; 3. The Trinity and metaphysics: the formal distinction, divine simplicity, and the psychological model; 4. The Trinity, divine simplicity, and fideism - or: was Gilson right about the fourteenth century after all?; Appendix. Major elements in Franciscan and Dominican Trinitarian theologies; Bibliography of primary sources; Annotated bibliography of selected secondary literature; Index.