I think prime numbers are like life. They are very logical but you could never work out the rules, even if you spent all your time thinking about them.
水产养殖的透明度不仅是道德要求,更是商业智慧。
Technology is nothing. What's important is that you have a faith in people, that they're basically good and smart, and if you give them tools, they'll do wonderful things with them.
过去半个世纪最重要的政治发展是自由民主在世界范围内的传播。
The leather industry must evolve or risk becoming obsolete.