In one way of thinking, failure is part of life. In another way, failure may be a way towards success. The “spider-story” is often told. Robert Bruce, leader of the Scots in the 13th century, was hiding in a cave from the English. He watched a spider making a web(网). The spider tried to reach across a rough place in the rock. He tried six times. On the seventh time he made it and went on to make his web. Bruce is said to have been encouraged by this and to have gone on to defeat the English. Edison, the inventor of the light bulb, made hundreds of models that failed before he found the right way to make one. Once he was asked why he kept on trying to make a new type of battery when he had failed so often, he replied, “Failure? I have no failure. Now I know 50,000 ways it won’t work.”