Every year of our lives, we use up some 8,760 hours. Every ten years, 87,600 hours. If our lives extend only to age 50, we'll still have 438,000 hours to achieve whatever goals we've set for ourselves. If we make it to 60, we've got a total of 525,600 hours at our disposal--to handle priorities, fulfill obligations, meet interesting people, pursue personal interests, travel to exotic lands, contribute to the lives of others, etc. . . .