As the medical profession was in those days the only one open to Jews in Germany, the boy Heine was destined for a commercial career; and in 1815 his father took him to Frankfort to establish him in a banking-house. But a brief trial proved that he was utterly unsuited to the situation, and after two months he was back again in Duesseldorf. Three years later he went to Hamburg, and made another attempt to adopt a mercantile pursuit under the auspices of his uncle, the wealthy banker Solomon Heine. The millionaire, however, was very soon convinced that the "fool of a boy" would never be fit for a counting-house, and declared himself willing to furnish his nephew with the means for a three years, course at the university, in order to obtain a doctor's degree and practice law in Hamburg. It was well-known that this would necessitate Harry's adoption of Christianity; but his proselytism did not strike those whom it most nearly concerned in the same way as it has impressed the world. So far from this being the case, he wrote in 1823 to his friend Moser: "Here the question of baptism enters; none of my family is opposed to it except myself; but this _myself_ is of a peculiar nature. With my mode of thinking, you can imagine that the mere act of baptism is indifferent to me; that even symbolically I do not consider it of any importance, and that I shall only dedicate myself more entirely to upholding the rights of my unhappy brethren. But, nevertheless, I find it beneath my dignity and a taint upon my honor, to allow myself to be baptized in order to hold office in Prussia. I understand very well the Psalmist's words: 'Good God, give me my daily bread, that I may not blaspheme thy name!'"