世事如棋，乾坤莫测。
形容世事变化无常，难以预测。
人工智能的未来在于理解因果关系，而不仅仅是相关性。
True progress in farming comes from observing and learning from nature.
The teacher must believe in the potential of his students. He must see in each one of them a spark of the divine fire.
其他节日纪念过去；植树节则为未来着想。
Don't get involved in partial problems, but always take flight to where there is a free view over the whole single great problem, even if this view is still not a clear one.
最好的投资是投人，而不是投项目。
The true value of a tree is measured in decades, not dollars.
向更清洁能源的过渡必须实用、经济且可靠。