"It was the best oftimes. It was the worst oftimes. " The famous open ing sentence ofCharles Dickens' Tale oJ Two Cities can serve as a motto to characterize the mixture of optimism and pessimism with which a large number of nineteenth-century intellectuals viewed the con dition of their age. It is nowadays hardly necessary to accentuate the optimistic elements in the nineteenth-century view of history; many recent historians have sharply contrasted the complacency and the great expectations of the past century with the fears and anxieties rampant in our own age. It is often too readily...