Where does "the weather is not as good as the right place, and the right place is not as good as the people" come from?

The sentence "The weather is not as good as the right place, and the right place is not as good as the people" comes from <>, which talks about the role of external environment and human heart factors on war. The previous sentence means that good weather is not as good as good weather. The geographical situation, the latter sentence means that the good geographical situation is not as good as the power of everyone working together. We must critically absorb Mencius's thoughts, because today we say that matter determines consciousness, but consciousness can react on matter. In fact, he was warning the monarch from one aspect: as long as we treat the people better, we will have nothing to fear even if a war breaks out.