当你有一个好收成时，农民高兴，他的妻子高兴，孩子们高兴，动物们高兴，土地也高兴。
When you have a good crop, the farmer is happy, his wife is happy, the children are happy, the animals are happy, and the land is happy.
The world is full of obvious things which nobody by any chance ever observes.
最高的艺术是隐藏艺术。
我不遵守规则，我制定规则。
The development of the drone industry is ultimately to serve humans, not to replace them.