 Sulzer was clearly significant for successors such as Kant and Schiller, both for his emphasis on the free activity of the mind in aesthetic experience and for his complex rather than simplistic position on the relation between art and morality. One other important aesthetician of the 1770s was also, like Herder, actually a student of Kant, but his theory would become an unstated target of Kant’s criticism rather than a source for him. This is Marcus Herz (1747–1803), Herder’s junior by three years. Remembered by philosophers primarily as the respondent at the defense of Kant’s inaugural dissertation On the Form and Principles of the Sensible and Intelligible World in 1770 and as the recipient of Kant’s letters describing his progress on the Critique of Pure Reason in the following decade, Herz had a significant career of his own, as a physician and medical writer, as a lecturer on philosophy, and as the author not only of the earliest exposition of Kant’s philosophy, but also of an independent and important work in aesthetics.