The best economic insights come from observing how people actually behave.
是大地的泪点,使她的微笑保持着青春不谢。
Innovation in forestry isn't about replacing nature—it's about working with it.
在数学中,提出问题的艺术必须比解决问题更有价值。
最好的原料才能做出最好的面包。就是这么简单。