"After the cycles, poems, singers, plays, Vaunted Ionia's, India's — Homer, Shakspere — the long, long times' thick dotted roads, areas, The shining clusters and the Milky Ways of stars — Nature's pulses reap'd, All retrospective passions, heroes, war, love, adoration, All ages' plummets dropt to their utmost depths, All human lives, throats, wishes, brains — all experiences' utterance; After the countless songs, or long or short, all tongues, all lands, Still something not yet told in poesy's voice or print — something lacking, (Who knows? the best yet unexpress'd and lacking.)"
January 1, 1970
https://en.wikiquote.org/wiki/Leaves_of_Grass