"I do not doubt but the majesty and beauty of the world are latent in any iota of the world, I do not doubt I am limitless, and that the universes are limitless, in vain I try to think how limitless, I do not doubt that the orbs and the systems of orbs play their swift sports through the air on purpose, and that I shall one day be eligible to do as much as they, and more than they, I do not doubt that temporary affairs keep on and on millions of years, I do not doubt interiors have their interiors, and exteriors have their exteriors, and that the eyesight has another eyesight, and the hearing another hearing, and the voice another voice..."
January 1, 1970
https://en.wikiquote.org/wiki/Leaves_of_Grass