作物的多样性和思想的多样性同样重要;两者都是韧性的关键。
Diversity in crops is just as important as diversity in ideas; both are essential for resilience.
读书人如果不树立良好的品德,必定写不出好文章。
No man's knowledge here can go beyond his experience.
Conversation should touch everything but should concentrate itself on nothing.