[...] if any of us or all of us are truly optimists, and believe as Browning did, that existence has a value wholly inexpressible, we are most truly compelled to that sentiment not by any argument or triumphant justification of the cosmos, but by a few of these momentary and immortal sights and sounds, a gesture, an old song, a portrait, a piano, an old door.

-Robert Browning (1903)