Originally published in 1973. The volume is divided into four sections: The introduction places the position of the Buddhist Tantras within Mahayana Buddhism and recalls their early literary history, especially the Guhyasamahatantra; the section also covers Buddhist Genesis and the Tantric tradition. The foundations of the Buddhist Tantras are discussed and the Tantric presentation of divinity; the preparation of disciples and the meaning of initiation; symbolism of the mandala-palace Tantric ritual and the twilight language. This section explores the Tantric teachings of the inner Zodiac and the fivefold ritual symbolism of passion. The bibliographical research contains an analysis of the Tantric section of the Kanjur exegesis and a selected Western Bibliography of the Buddhist Tantras with comments.

Traditional theistic proofs are often understood as evidence intended to compel belief in a divinity. John Clayton explores the surprisingly varied applications of such proofs in the work of philosophers and theologians from several periods and traditions, thinkers as varied as Ramanuja, al-Ghazali, Anselm, and Jefferson. He shows how the gradual disembedding of theistic proofs from their diverse and local religious contexts is concurrent with the development of natural theologies and atheism as social and intellectual options in early modern Europe and America. Clayton offers a fresh reading of the early modern history of philosophy and theology, arguing that awareness of such history, and the local uses of theistic argument, offer important ways of managing religious and cultural difference in the public sphere. He argues for the importance of historically grounded philosophy of religion to the field of religious studies and public debate on religious pluralism and cultural diversity.