Which type is more happy? It seems that the "Pareto Principle" exist in every company, 80 percent of innovation comes from 20 percent of the employees. After I worked in a Japanese Company, and contacted with a lot of people, I began to understand the principle. I have worked in a team with 10 employees, but only 30% employees work, 70% employees did not work. Hardworking employees always very busy, they have a lot of work to do, and do overtime every day. And lazy employees always go home on time, and enjoy their life after work. Hardworking people is too busy, at last one employee was sick. But lazy employees are all in good health. I don't know which type is more happy.