农业效率必须与生态限制相协调——我们无法超越自然。
Efficiency in farming must align with ecological limits—we cannot outsmart nature.
The truth is, I don't know what I would have done without mathematics.
为了将关心转变为行动,我们需要发现问题,找到解决方案以及评估后果。但是世界的复杂性使得这三步都难于做到。