In modern society, there is a famous saying that time is money, which is very right in very business.Efficiency means lower average cost. Efficiency means advantages in competition. However. in most cases, correctness is more important than effiency with risk of making mistakes, especially in the area where human life is involved. So i disagress that People should work quickly and risk making mistakes or should work slowly and make sure that everything is correct.Lets think about medicine production and doctors in operations. In these places, of course, efficiency is the second factor,even the last to be considered. Could you imagine that a doctor ask patient's families whether they would like to accelerate the operation process at the price of risk of making harm in the operations? Or as a patient who are going to drug store to bug medicine, can you bear the fact that you are told the drugs are cheaper but maybe something wrong in them. Thats rediculous.The same logic can also apply to architects and builders. If they dont make a best shot in design just for quickness, when the earthquake comes, thousands of people in the skycrapers would die. If the builders do not build every coner carefully, the whole structure of building is volnerable. And human lifes are in threat of death.In the manufacturing industry and food industry, if workers atre lazy, the total cost of production will be very high. Certainly the company will loss its advantages in the violent global competetion. Finally the firm may bankrupt. The same logic can also be apply to the company who provides services. However, if they make  toixt food or cars which have weakness in brakes, someone die because of these mistakes, they will have to pay more money in the lawsuits.In conclusion, after deliberations, we can understand in most cases we must make sure things are correct. As it comes to the other things such as being late for company sometimes or spelling mistakes, these are uncritical and reparable.