Stay Young
Ignore chronological age: hang on to a child-like curiosity.
Ignore physiological age: hang on to physical flexibility.
Scribble outside every damn box you can get hold of and boost your psychological age and mental agility.
Ask why there is sand in the sand pit anyway; there is more and better on the beach.
Dream dreams. And make them happen.
Do it on a whim.
Know deep down that you can be your own expert: study hard. But not as at college. As in Brave New World and I need to be ready.