As per psychotherapisis, analyzing the lives of several hundred succesful people, many suffered crushing setback all learnt techniques for defeating dejection and not losing their interests in serious, critical and difficult situations. one's view of thinking decides whether you are an optimist or pessimist. For example when a glass is kept with 50% of water, some people say that this is half-full. They are optimists. Those who say that the glass is half-empty are pessimiss. So be an optimist always. With an optimistic attitude we can achieve a lot in life. To have this optimistic attitude we need to know the difference between the two. We may understand it from an example. When two of my friends failed in an examination, one took it as a real failure and lost his confidence, while the other one accepted this as a challenge and did perform well in the proceeding examination that followed. This is the differance. The optimist takes failure not as a setback to his attempts, but, as an opportunity to get a second chance to improve, while a pessimist takes this as a real failure and loses hope in life! According to one research it was found that most of the successful people are optimists. It is very important for us to be optimistic to be succesful in life. We can take the attitude as an important step for being successful. Its all about being OPTIMISTIC!!