一目之视也，不若二目之视也；一耳之听也，不若二耳之听也。
一只眼睛不如两只眼睛看得明白，一只耳朵不如两只耳朵听得清楚。
The ideal of behaviorism is to eliminate coercion: to apply controls by changing the environment in such a way as to reinforce the kind of behavior that benefits everyone.
能源行业必须适应和发展，以应对21世纪的挑战。
The true measure of agricultural success is not yield alone, but the health of the ecosystem that produces it.