I do not know the irreducible minimum of happiness for any other spirit than my own. It is impossible to be certain even of mine. Yet I believe that I know my tangible desideratum. It is a tree-top against a patch of sky.
Desiderata (Latin: "desired things") is a 1927 prose poem by American writer Max Ehrmann. Largely unknown in the author's lifetime, the text became widely known after its use in devotional and spoken-word recordings in 1971 and 1972.