The single work of art that attracted him strongly at this time was a statue of Venus, by Canova, which he compares to the Venus de' Medici, and his brother Samuel remarks that he was always more attracted by sculpture than painting. Canova was a genius very similar to Longfellow himself, as nearly as an Italian could be made to match an American, and he was then at the height of his reputation.
In 1829 Longfellow returned to Portland and was immediately chosen a professor at Bowdoin College, where he remained for the next seven years. When, in 1836, Professor Ticknor retired from his position as instructor of modern languages at Harvard, his place was offered to Longfellow and accepted. This brought him into the literary centre of New England, and one of the first acquaintances he made there was Charles Sumner, who was lecturing before the Harvard Law-School.
The friendship between these two great men commenced at once and only ceased at Sumner's death in 1874, when Longfellow wrote one of the finest of his shorter poems in tribute to Sumner's memory. It was as poetic a friendship as that between Emerson and Carlyle; but whereas Emerson and Carlyle had differences of opinion, Sumner and Longfellow were always of one mind. When Sumner made his Fanueil Hall speech against the fugitive slave law, which was simply fighting revolution with revolution, and Harvard College and the whole of Cambridge turned against him, Longfellow stood firm; and it may be suspected that he had many an unpleasant discussion with his aristocratic acquaintances on this point. It was considered bad enough to support Garrison, but supporting Sumner was a great deal worse, for Sumner was an orator who wielded a power only inferior to Webster. Fortunately for Longfellow, his connection with the university ceased not long after Sumner's election to the Senate; and the unpleasantness of his position may have been the leading cause of his retirement.
Sumner was the best friend Longfellow had, and perhaps the best that he could have had. There was Emerson, of course, and Longfellow was always on friendly terms with him; but Emerson had a habit of catechising his companions which some of them did not altogether like; and this may have been the case with Longfellow, for they never became very intimate. Sumner, on the contrary, had always a large stock of information to dispense, not only concerning American affairs but those of other nations, in which Longfellow never lost his interest. More important to him even than this is the fact that Sumner's statements were always to be trusted. It may be surmised that it was not so much similarity of opinion as the purity of their motives that brought the poet and statesman together.