农业的进步不仅要以产量衡量，还要以长期的环境影响来衡量。
Progress in agriculture must be measured not just in yield, but in long-term environmental impact.
"The most effective way to destroy people is to deny and obliterate their own understanding of their history."
设计良好的市场能最大限度地减少策略操纵的机会。