Book excerpt: Today as never before, most people in the developed world at least, can expect to live to old age. How has society reacted to this shift of mortality? Much of the accepted account of ageing is simply the persistence into our own time of past perceptions. Laslett argues that the Third Age - beyond the breadwinning and child-rearing years - is that of greatest personal fulfilment, the apogee of life. Combining social history, sociology and philosophy, this book provokes new thinking on one of the crucial changes in the modern world.