在全然不知不觉中，他们从书中吸取的知识积累起来，经过想想象力的加工，对将来大有用处。
All unconsciously the ideas they derive from the printed pages are stored up, to be worked over by the imagination for their future profit.
帕兰梯和普雷斯科特的理论：一个社会的生产力不仅仅依赖于有用的知识的积累，而且还依赖于这个社会对于生产力加上的约束。
Parente and Prescott's theory: a society's productivity does depend on the set of constraints society imposes as well as the stock of useful knowledge.
帕兰梯和普雷斯科特的理论：一个社会的生产力不仅仅依赖于有用的知识的积累，而且还依赖于这个社会对于生产力加上的约束。
Parente and Prescott's theory: a society's productivity does depend on the set of constraints society imposes as well as the stock of useful knowledge.
应用推荐