La verdadera sabiduría es estar siempre a tiempo, y cambiar con una buena gracia en circunstancias cambiantes.
Robert Louis Stevenson (2015). “The Complete Works of Robert Louis Stevenson: Novels, Short Stories, Poems, Plays, Memoirs, Travel Sketches, Letters and Essays (Illustrated Edition): The Entire Opus of Scottish novelist, poet, essayist and travel writer, containing Treasure Island, Strange Case of Dr Jekyll and Mr Hyde, Kidnapped, Catriona and A Child's Garden of Verses”, p.4576, e-artnow