 To describe Wolff as merely a disciple of Leibniz, however, is misleading in several respects. First and foremost, this characterization undercuts the important philosophical differences that existed between the two men. Second it misconstrues the nature of their relationship and the type of intellectual exchange that transpired between them. During the early part of Wolff’s career, and the period when he corresponded with Leibniz, Wolff’s primary focus was in the field of mathematics. It is maintained that Wolff was the first to teach calculus formally in Germany (Beck 1969: 257). According to Wolff’s own report (Wuttke 1841: 146), when he arrived at Halle in 1707, mathematics was “entirely neglected, nay quite unknown, in that place”. With the exception of his German Logic, Wolff’s energy early in his career was directed at producing a four-volume Elements of All the Mathematical Sciences [German edition 1710, and Latin edition 1713] as well as a Mathematical Lexicon [1716]. In this light, it is perhaps not surprising to find the bulk of the Wolff-Leibniz correspondence dedicated to issues in mathematics. Although they also exchanged ideas on philosophical topics (for discussion, see Rutherford 2004), their philosophical correspondence centered primarily on ethics and philosophical theology.