来自《耶鲁大学开放课程：金融市场 第1集 第1集》

• 
  
  nobody knows what will work and
  没有人知道哪些是可行的
• 
  
  abstract theory doesn't guide you completely.
  有时候理论完全无法指导实践
• 
  
  Once an invention is seen to work
  而当一种创新品运行顺畅的时候
• 
  
  it is rapidly copied around the world.
  就会在世界范围内被模仿
• 
  
  We can see various breaks in financial history
  金融史上 当新的想法突然间变得可行
• 
  
  when some new idea was suddenly proven workable.
  我们就能看到许多的创新突破
• 
  
  Traditionally, financial inventions were
  传统的金融产品
• 
  
  not granted patent rights,
  是没有专利的
• 
  
  but now in the United States and
  但现在 在美国
• 
  
  in a number of other countries
  和其他的一些国家中
• 
  
  it has become possible to patent financial inventions.
  金融产品也拥有了专利
• 
  
  I know I've done that in my life and
  我就做过这样的事情