1·Employee puts in hours of physical or mental labor and employee draws out life-sustaining moola.
雇员投入数小时的体力或脑力劳动来得到维持生计的薪水。
2·Learning memory systems, mental sports and juggling are all wonderful ways to maintain a vibrant, lively mind.
学习记忆系统，脑力运动和杂耍都是保持大脑活力的好方法。
3·Some foods, he concludes, are like pharmaceutical compounds; their effects are so profound that the mental health of entire countries may be linked to them.
他得出结论：有些食物就像药物；这些食物的功效如此复杂以致也许他们与整个国家的脑力健康有关联。
4·Humans who retire to do nothing lose their brain mass, whereas those who keep active mental interests maintain mass and even increase it.
退休后什么也不做的人会失去脑质量，反之，那些保持活跃脑力兴趣的人能保持脑质量，甚至增加脑质量。
5·The difference does not, for example, coincide with the difference between a manual and a mental job; a gardener or a cobbler may be a worker, a bank clerk a laborer.
这个区别不同于体力劳动和脑力劳动之间的区别；一个园艺工人或一个补鞋匠可能是工作者，一个银行职员可能是劳作者。