'If you never change your mind, why have one?' – Edward de Bono There is a story that is told about a wandering stranger who once stopped a king in the street. Furious, the king shouted, ‘How dare you, a man of little worth, interrupt the progress of your sovereign?’ The stranger answered: ‘Can you truly be a sovereign if you cannot even fill my begging bowl?’ And he held out his bowl to the king. In wishing to show his generosity to the crowd that had now assembled, the [...]