When something meets emergency, it calls for efficacy and intensity. Trauma surgeons handle patients transported by ambulances fast and effective. They use titanic pins to close incisions on the skin to stop bleeding as a life saving approach but this rough works may cause huge scars. When firemen are going to extinguish the fire disaster in a community, they just directly rush into the place without hesitation. When the police fights with criminals who robed a bank and killed two officers with a fire gun, they do not, in my mind, care many of details.On the contrary, some works needs precise crafts. You can take your time whereas a single mistake maybe a symbol of failure. After operated on human brain for 15 hours, a soft unnecessary vibration of the neurosurgeon's hand can lead to sudden brain death. Artists meticulous create their paintings and engraving-Mona Lisa's smile, the greatest portray, built for a decade. What if he mispainted a green plot on her nose?Similar with Edison, the man endeavored hundreds of times for lightening materials.When mistakes are unpredictable or beyond the human's scope, human has no need to be responsible for. The first day in medical school, students are taught that even they do all the right things, make all the right decisions, some people just die. Doctors attempt their best to cure diseases, to ease pain but they can't break the limitation of era. When Steve Jobs died due to pancreatic carcinoma, you have no standpoint to censure doctors for not curing an incurable disease.Scientific works in laboratory need accuracy. You want to prove that MAPK signal pathway serves a central role in the mechanism of lung cancer genesis, you go check every single step times both in vivo and in vitro. What's more, interrupt rate-limiting steps by specific drugs in order to observing reversing effect. With adequate confirmation held in your hand, you can subsequently announce it after your made the hypothesis months even years later. So as detectives or investigators work. People do a slew of things everyday between right and wrong, but when it comes to a man's guilty or innocence, it has to be right. That's the reason why their work, finding clues, needs accuracy.In the bigger picture, the correct approach is supposed to be what is suitable for the attribution of specific work. At the time that you are racing with time, you pick up efficacy as your friend while you are beating mistakes, you choose accuracy.