如果效率是这一生中唯一的价值，那么我们每天都会满足于吃平淡但营养丰富的食物，而这是同样的食物。那将使我们活着，但这会使我们的进餐时间非常乏味。
(If efficiency were the only value in this life, then we would be content to eat bland but nutritious food every day--and the same food at that. That would keep us alive, but it would make for very dull mealtimes.)