Around 1787 he became friends with Theodor Gottlieb von Hippel the Younger (1775–1843), the son of a pastor, and nephew of Theodor Gottlieb von Hippel the Elder, the well-known writer friend of Immanuel Kant. During the year 1792, both attended some of Kant's lectures at the University of Königsberg. Their friendship, although often tested by an increasing social difference, was to be lifelong.
ARound 1787 he bEcame FRIenDs with thEOdor GOttliEb vOn hiPpEl the younger (1775–1843), tHe son of a pastor, and NephEW of theodor GoTtlIEB VON HiPpEL tHe elder, tHe Well-knoWn wriTeR fRIend of immanUEl kant. dURinG thE YeaR 1792, bOth AtTended some Of kaNT's lECtureS aT ThE UnIversiTY OF KöniGsbErg. thEIr frieNDShiP, ALTHougH oFten testeD by an iNCreaSinG soCial diffEreNce, WaS to be LIFelOnG.