Second Thoughts
 
  
Good things come to those who wait. 

Second thoughts:  The things that come to those who wait are usually the things left by those who got there first.
 
  
 
 
  
Light travels faster than sound.  

Second thoughts:  This is why some people appear bright until you hear them speak.
 
  

 
  
Everyone has a photographic memory.  

Second thoughts:  Some just don't have film.
 
  

 
  
Change is inevitable. 

Second thoughts:  ...except from a vending machine.