Leopardi, 13

Human pleasure (likewise probably that of every living being, in the order of things as we know them) can be said to lie always in the future, to be only in the future, to consist purely in the future. The act of pleasure, strictly speaking, never takes place. (290)

Leopardi, Giacomo, and Michael Caesar. Zibaldone. New York: Farrar, Straus and Giroux, 2013.