Related:

• It is well for people who think to change their minds occasionally in order to keep them clean.
  ...For those who do not think, it is best at least to rearrange their prejudices once in a while....
• Progress is impossible without change, and those who cannot change their minds cannot change anything.
  -- George Bernard Shaw (1856-1950)...
• Progress is impossible without change, and those who cannot change their minds cannot change anything.
  -- G.B. Shaw...
• By the term "the good old days," most people are referring to those times in which static electricity was about the only thing that would stand your hair on end.
• Change is the law of life. And those who look only to the past or present are certain to miss the future.
  -- John F. Kennedy, 1964...
• A billion here, a couple of billion there -- first thing you know it adds up to be real money.
  -- Senator Everett McKinley Dirkse...
• Those who can, do. Those that can't criticize.
• We are on strike against those who believe that one man must exist for the sake of another .
  .. our terms are a moral code which holds that man is an end in himself and not the means to any end of others ....