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• Progress is impossible without change, and those who cannot change their minds cannot change anything.
  -- G.B. Shaw...
• Progress, far from consisting in change, depends on retentiveness.
  .. Those who cannot remember the past are condemned to repeat it....
• The leopard cannot change its spo
• He who can, does. He who cannot teaches. -- George Bernard Shaw (1856-1950)
• He who can, does. He who cannot, teaches. --George Bernard Shaw, Man and Superma
• It is only the wisest and the very stupidest who cannot change. -- Cervante
• It is possible to pass laws that control or place limits on people's behavior, but legislation cannot reform human nature.
  Laws cannot change what is in people's hearts and minds....
• A zebra cannot change its spots -- Al Gore
• Even God cannot change the past. -- Joseph Stali