Christian Wolff, long regarded as a champion of dogmatic rationalism, was in fact deeply involved in empirical sciences such as physics, astronomy, meteorology, and agronomy. He also devoted a significant part of both his research and teaching to the life sciences and was especially eager to establish the theoretical foundations of medical practice. Challenging the scholarly cliché of Wolff ’s methodical apriorism, recent research has highlighted an empirical, a posteriori, or even experimental component of Wolffian science. This paper aims to (...) provide a different insight into.. (shrink)

The eighteenth-century German rationalist tradition is, broadly speaking, committed to (what I call) ‘the principle of rational cognition’: the grounded must be rationally cognizable from its sufficient ground. Whereas the prevailing view takes the fundamental challenge to rationalist paradise to stem from the principle of sufficient reason, I argue that it instead stems from this principle: How is it possible to rationally cognize anything at all from its ground? By investigating the opposing responses of two of Leibniz’s most influential immediate (...) successors, Christian Wolff and Christian Crusius, we find no easy way to remain in rationalist paradise. (shrink)