Related:

• Homer: This isn't fair! How can you tell who's sane and who's insane?
  Doctor: Well, we have a very simple method. [stamps his hand, `INSANE'] Whoever has that stamp on his hand is insane....
• In an insane society, the sane man must appear insane. -- Spock
• There is no man that lives who does not need to be drilled, disciplined, and developed into something higher and nobler than he is by nature.
  -- Henry Ward Beeche...
• It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better.
  The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood, who strives valiantly...
• You can bring men from other parts of the world who are sane.
  And you know what happens? At the very moment they cross those mountains....
• To the man-in-the-street, who, I'm sorry to say, Is a keen observer of life, The word "Intellectual" suggests straight away A man who's untrue to his wife.
  -- W. H. Aude...
• The following ties in nicely with another thread (What is music?
  ) All I know about music is that not many people ever really hear it....
• He who studies books alone will know how things ought to be
  and he who studies men will know how they are....