"Of the gladdest moments in human life, methinks, is the departure upon a distant journey into unknown lands. Shaking off with one mighty effort the fetters of Habit, the leaden weight of Routine, the cloak of many Cares and the slavery of Home, one feels once more happy. A journey, in fact, appeals to the Imagination, to Memory, to Hope,—the three sister Graces of our moral being."

Richard Francis Burton, Zanzibar (London, 1872),