> When you are young, you have time but no money. When you are old, you have money but no time. I've heard it described as a three-phase progression: * Child

> When you are young, you have time but no money. When you are old, you have money but no time. I've heard it described as a three-phase progression: * Child -> Time and Energy, but no Money * Adult -> Energy and Money, but no Time * Elder -> Time and Money, but no Energy (Where "Energy" is a short-hand including also physical capability and bodily health)