From Catherine’s perspective, the visit had been less than a success. Diderot’s ideas did not constitute a practical program for Russia; a noble, idealistic philosophe was not a practical politician or administrator. Once physically recovered, Diderot, however, decided that his visit had been a triumph. From Paris, he wrote to Catherine, “Now you sit beside Caesar, your friend [Joseph of Austria], and a little above Frederick [of Prussia,] your dangerous neighbor.”