“I came from nothing; but from where
Come these undying thoughts I bear?”
Opening lines of Song of Derivations" https://www.poemhunter.com/poem/a-song-of-derivations/"A. In Poems (London: John Lane, 1896) this poem is titled "The Modern Poet: A Song of Derivations". In later editions of Poems, it is titled "A Poet's Fancies VIII: A Song of Derivations".