The past is a teacher, if we are willing to learn.
过去是一位老师，如果我们愿意学习的话。
教育是使人变得有道德的艺术。
Sustainable practices aren't just good for the planet; they're good for business in the long run.
农业创新不仅仅是技术问题，更是思维方式的转变。
剑鞘保护剑的锋利，自己却满足於它自己的迟钝。