It can be argued that momeny foresightedness are the essence of intelligence;that man s ability to manupulate time,to employ both past future as guides to present action,is what makes him human.

• 可以证明的是；记忆力和预见能力是智力的重要部分；人类之所以是人类就在于他具有驾驭时间的能力；他能用过去和将来指导当前的行为.