Symphony From the New World, which spread his reputation worldwide, [4] and his Cello Concerto, one of the most highly regarded of all cello concerti. He also wrote his most appreciated piece of chamber music, the American String Quartet, during this time. But shortfalls in payment of his salary, along with increasing recognition in Europe and an onset of homesickness, led him to leave the United States and return to Bohemia in 1895. All of Dvořák's nine operas but his first have librettos in Czech and were intended to convey Czech national spirit, as were some of his choral works. By far the most successful of the operas is Rusalka. Among his smaller works, the seventh Humoresque and the song "Songs My Mother Taught Me" are also widely