Donald Rutherford

A number of recent authors have raised the question of Leibniz’s commitment, during the 1680s and after, to the reality of corporeal substances. In contrast to the standard reading of him as embracing early on a view of substance which is in all essential respects that of the “Monadology”, it has been argued that Leibniz is in fact inclined to recognize two distinct types of substance: on the one hand, unextended soul-like substances ; on the other hand, quasi-Aristotelian corporeal substances. Some commentators have seen Leibniz as deciding definitively by the late 1690s in favor of the monadic theory. Others, however, have argued for a more complicated reading of his development, seeing Leibniz as struggling with the problem of corporeal substance for much of his career.

The essay “On Generosity” holds a special place among Leibniz’s ethical writings. In no other text does Leibniz give such prominence to the concept of generosity, or relate it to his central doctrine of justice as the charity of the wise. The circumstances of the piece’s composition are uncertain. Watermark dating of the paper places it in the period 1686-1687. The Academy editors suggest a connection between it and a text by an unknown author, “Discours sur la generosité,” a transcription of which is found among Leibniz’s manuscripts. The paper on which this latter text is written is dated by watermark to the same period as “On Generosity,” and the editors plausibly speculate that Leibniz’s reading of it may have spurred the composition of his own essay on the topic.