The ability to forget

 Twelve years have passed since the great earthquake hit the eastern part of Japan. 
 "Never forget" is a phrase I often hear. Of course I don't want to forget the day when the tragedy occurred, however, at the same time it is also necessary to forget sadness. 
 If you forever can't forget sadness or failures, you will not be able to live. 
 I deny neither the value of memorizing sadness nor the value of learning how to deal with it. 
  To continue to live your life, both remembering the past and fogetting it is necessary.