In Johann Jakob Wettstein's Principles for New Testament Textual Criticism Silvia Castelli investigates the genesis, development, and legacy of Wettstein’s criteria for evaluating New Testament variant readings. Wettstein’s guidelines, the Animadversiones et cautiones, are the first well-organized essay on New Testament text-critical methodology, first published in the Prolegomena to his New Testament in 1730 and republished with some changes in 1752. In his essay, Wettstein presents a new text-critical method based on the manuscripts’ evidence and on the critic’s judgment. Moving away from the authority invested in established printed editions, Wettstein’s methodology thus effectively promotes and enhances intellectual freedom. The second part of this volume offers a critical text and an annotated English translation of Wettstein’s text-critical principles.