过去总是紧张,未来才是完美。
"The past is always tense, the future perfect."
以物易物、互通有无的倾向是人类共有的,也是其他动物所没有的。
我们能种植的最有价值的作物是生产者和消费者之间的信任。
There is no perfect knowledge which can be entitled ours, that is innate; none but what has been obtained from experience.