Precision agriculture isn't about replacing farmers—it's about empowering them with better tools.

The difference between correlation and causation is not just academic—it can have profound policy implications.

我宁愿没钱但快乐。

凡是言论好行动，有利于上天鬼神与百姓的就做，凡是言论好行动，有害于上天鬼神与百姓的就舍弃。 

物理定律必须以独立于坐标系选择的方式表述。