The greatest threat to our forests is not logging, but indifference.
The desert teaches silence, and silence teaches words.
解释：兵器既不齐全又不锋利，实质上和没有兵器一样！
孔子说：“君子心怀仁义，小人心怀财利。”
穷人并非不理性；他们和任何人一样理性，但他们在非常不同的约束下行动。