For how imperiously, how coolly, in disregard of all one's feelings, does the hard, cold, uninteresting course of daily realities move on! Still we must eat, and drink, and sleep, and wake again, - still bargain, buy, sell, ask and answer questions, - pursue, in short, a thousand shadows, though all interest in them be over; the cold, mechanical habit of living remaining, after all vital interest in it has fled.

Uncle Tom's Cabin, Or, The History of a Christian Slave (ed. 1852)