Related:

• When one door closes another door opens; but we often look so long and so regretfully upon the closed door, that we do not see the ones which open for us.
  -- Alexander Graham Bell...
• When one door of happiness closes, another opens; but often we look so long at the closed door that we do not see the one which has been opened for us.
  -- Helen Kelle...
• When one door closes another door opens; but we so often look so long and so regretfully upon the closed door, that we do not see the ones which open for us.
  Alexander Graham Bell, american invento...
• If God shuts one door, he opens another.
• He who opens a school door closes a prison. -- Victor Hugo
• Bart: [into walkie talkie] Milhouse...Milhouse! _Now_ what do I do?
  [pounding on outside door gets louder] I got it....
• When one door closes, fortune will usually open another. -- Fernando de Roja
• Bob: [Angrily] You again! Well, that's it. [ominously] I'm going to do what I should have done a long time ago.
  [at the Simpson home, there is a knock at the door....
• Time is of the essence, so close the door!