You do have to change things as warfare changes.
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Much can and must be done by governments, but they cannot of themselves change lives.
The Howard Hughes I knew began to change after his plane crash in 1941.
A leopard does not change his spots, or change his feeling that spots are rather a credit.
Change is not a destination, just as hope is not a strategy.
Styles, like everything else, change. Style doesn't.
Injuries obviously change the way you approach the game.