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• When working toward the solution of a problem, it always helps if you know the answer.
  -- Rule of Accuracy...
• When working toward the solution of a problem, it always helps if you know the answer.
• When I'm working on a problem, I never think about beauty.
  I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong....
• When you have shot and killed a man you have in some measure clarified your attitude toward him.
  You have given a definite answer to a definite problem....
• The product of an arithmetical computation is the answer to an equatio
  it is not the solution to a problem. -- G. O. Ashley...