I've used this object lesson when teaching kids priorities: - Fill a jar with rocks up to the top. Ask the kids, "Is it full?" -> They normally say yes. - Add sand to the jar so that it fills the gaps between the rocks. "Now is it full?" -> normally some hesitancy.... - Pour water to fill the jar. "Now is it full?" -> Yes, it is full (unless you want to go into chemistry and gaps btw molecules...) - Pull out another rock -> What would happen if I tried to fit the rock into the jar now? -> It will over flow - How would I get this rock in? -> Point of the Lesson: Put the rocks in first. What is your priority? Rarely does someone at the end of their life wish they had worked more. I use that object lesson as an analogy to my employees when they think I am overworking them. "See, you're not overworked, you can always fit in MORE!" Well, I mean, I did use that lesson, when I had employees. Also, those rocks really hurt!