Some people believe that the best ways are the old ways. We should all, they think, respect tradition. 'The more things change' they say, 'the more they stay the same'. They may be right. Yet we live on a planet that never stops moving and it brings us all plenty of change. If we do not allow for a little innovation in our plans, we are likely to treat progress as an unwanted intruder, a thief come to rob us of our security; when it is, in fact, an angel come to bless us with freedom.