E. E. Cummings' "[O sweet spontaneous]"

E.E. Cummings, in full Edward Estlin Cummings, (born October 14, 1894, Cambridge, Massachusetts, U.S.—died September 3, 1962, North Conway, New Hampshire), American poet and painter who first attracted attention, in an age of literary experimentation, for his unconventional punctuation and phrasing. Cummings’s name is often styled “e.e. cummings” in the mistaken belief that the poet legally changed his name to lowercase letters only. Cummings used capital letters only irregularly in his verse and did not object when publishers began lowercasing his name, but he himself capitalized his name in his signature and in the title pages of original editions of his books.

- bio via Britannica.com