我们在农业中做出的每一个决定都会影响几代人。
Every decision we make in farming echoes through generations.
The magic number 150 suggests that the size of our social networks is limited by the size of our brains.
该称颂的却不称颂,这就是不仁。 
文学的力量在于它能够让我们在世界上感到不那么孤独。