After graduating, he moved to Munich, where he came under the influence of the intellectual circle associated with Friedrich Thiersch; developing an interest in art history and archaeology.
In 1818 he published his first work, Über die Studien der griechischen Künstler (On the studies of Greek artists), which attracted the attention of the art collector and historian, Sulpiz Boisserée.
The following year, Boisserée recommended him to the publisher, Johann Friedrich Cotta, who entrusted him with editing the Kunstblatt (Art sheet), a supplement to the Morgenblatt für gebildete Stände of Stuttgart.
That, as well as continuing opposition from the painter, Peter von Cornelius (and his followers in the Nazarene movement), led him to accept an offer from Charles Frederick, Grand Duke of Saxe-Weimar-Eisenach, to become the new Director of the Weimar Princely Free Drawing School.
That same year, he married Henriette Wilhelmine Auguste Freiin von Stein, one of the courtiers of the Grand Duchess Maria.