" IMPOSSIBLE FRIENDSHIPS For example, with someone who no longer is, who exists only in yellowed letters. Or long walks beside a stream, whose depths hold hidden porcelain cups—and the talks about philosophy with a timid student or the postman. A passerby with proud eyes whom you’ll never know. Friendship with this world, ever more perfect (if not for the salty smell of blood). The old man sipping coffee in St.-Lazare, who reminds you of someone. Faces flashing by in local trains— the happy faces of travelers headed perhaps for a splendid ball, or a beheading. And friendship with yourself —since after all you don’t know who you are. "

― Adam Zagajewski , Eternal Enemies: Poems