" But they did not lose courage, for there is a kind of capillary attraction in the facing of two souls, that lifts faith quite beyond the level to which either could raise it alone: "

― George MacDonald , George MacDonald: The Complete Fantasy Collection - 8 Novels & 30+ Short Stories and Fairy Tales (Illustrated): The Princess and the Goblin, Lilith, Phantastes, ... Dealings with the Fairies and many more