can be anybody’s birthday? What, can the identical day that has once occurred recur again and again [Quid? idemne potest esse dies saepius qui semel fuit?]? It is definitely not possible [Certe non potest]…. Is a person’s birthday to be observed when he is dead [etiamne post mortem coletur]? Such a provision ill became one whose “intellect had roamed” over unnumbered worlds and realms of infinite space, without shores or circumference [innumerabiles mundos infinitasque regiones, quarum nulla esset ora, nulla extremitas]. —Cicero, On Ends, 101 (II.xxxi