The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.

翻译：仰观天上日月星辰，俯察地面山川原野，因此能够知晓幽隐和显明的各种事理。

The market is always changing, the only constant is change itself.

技术应该为农业服务，而不是相反 - 我们绝不能忘记我们的根基。