Have you ever wondered why when you go to a karate dojo which has been in business for 10-15 years, you would see only a few black belts and most are wearing white and blue belts? I guess this is a common occurrence and the reason for this is because after attaining blue or brown belts, the karateka started showing off to the beginners. After some time, they might have been humiliated when they got hit by beginners or even lost in a street fight, so they quit. Well, there are number of other reasons why people quit like losing interest but mostly it's because they got cocky and got humiliated. There are also a few others who learned their lesson in humility and stayed on to become black belts themselves. This kind of thing doesn't just happen in the martial arts world but also in business. We often see traders who had an early success in trading forex or stocks and after that they got cocky. They think that by doing the same trades that they did before, they'll attain the same level of success even without doing extensive research like they did when they first became successful. I think it would have been better if they weren't successful in the beginning so they would have learned the lesson earlier on. The Japanese have a saying, "Do things as when you were just beginning" or something like that. We should also apply this in our business and work on it like when we were just starting our business - with great enthusiasm and hard work, so we can also become black belts and masters of our business.