 In 1811 he lectured on dialectics for the first time (as he would do again regularly until his death, at which time he was in the early stages of preparing a version for publication). In 1813 he delivered as an address, and then published as an essay, On the Different Methods of Translation—an extremely important work in translation theory deeply informed by his own experience as a translator. In 1813–14 he lectured on pedagogy, or the philosophy of education, for the first time (as he would do on two subsequent occasions: 1820–1 and 1826). In 1818 he lectured on psychology for the first time (as he would again repeatedly until 1833–4). In 1819 he lectured on aesthetics for the first time (as he subsequently did on two further occasions, the last of them in 1832–3). In the same year he also began lecturing on the life of Jesus (as he did again on four further occasions over the following twelve years)—thereby inaugurating an important genre of literature on this subject in the nineteenth century.