加工效率绝不能以牺牲动物福利或食品安全标准为代价。
经济研究应旨在为现实世界的决策提供信息。
Every mathematical problem has a solution; it just takes time and creativity to find it.
The future belongs to those who learn more skills and combine them in creative ways.
书籍是最安静、最恒久的朋友;它们是最易接近、最睿智的顾问,也是最耐心的老师。