未经审视的生活不值得过。
农业的真正进步意味着让土地比我们发现时更好。
饥饿了就想吃饭，寒冷了就想温暖，疲劳了就想休息，爱好利益而厌恶祸害，这是人生下来就具有的本性。
People are curious. A few people are. They will be driven to find things out, even trivial things. They will put things together, knowing all along that they may be mistaken. You see them going around with notebooks, scraping the dirt off gravestones, reading microfilm, just in the hope of seeing this trickle in time, making a connection, rescuing one thing from the rubbish.