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技术应该为农民服务,而不是让他们的工作复杂化。
仅靠政策无法拯救我们的森林——需要个人、企业和政府采取行动。
The best illustrations are those that leave room for the reader's imagination.
企业的成功离不开对市场的深刻理解,离不开对消费者的尊重。
Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.
The desire for recognition is the most fundamental human desire, and it is the source of both the greatest achievements and the greatest tragedies in human history.