来自《耶鲁大学开放课程：基础物理 第12集 第12集》

• 
  
  that will betray that velocity?
  察觉出来吗
• 
  
  So, when you wake up will you say I'm moving or not?
  当你醒来后你能否说出自己是在运动
• 
  
  Now, you might say,
  你也许会说
• 
  
  I'm not moving because I'm on Amtrak
  我知道我没动因为我在美铁上
• 
  
  and I know this train is not going anywhere.
  而这趟车哪里也不去
• 
  
  That kind of sociological reason, by the way,
  类似这种生活常识的判断
• 
  
  there are many of them you cannot invoke.
  有很多我们都没法使用
• 
  
  You can only say, "I'm on this train.
  你只能说 "我在火车上
• 
  
  Is anything different?"
  究竟有什么不同呢"
• 
  
  And the claim is that nothing will be different.
  而结论就是没有任何不同
• 
  
  You just will not know you are moving.
  你就是无法知道自己是否在运动
• 
  
  Now, if the train picks up speed, or slows down,
  但是 如果火车开始加速 或者减速