To be Overconfident is a Good Thing?????

I think it is better to be overconfident than under but it is even better to be confident than overconfident. If you are confident then you'll have faith in your abilities but not overlook areas in which you need improvement. Therefore, you'll work hard to better yourself because you know that you can. But, if you're overconfident, you'll have unrealistic beliefs about your abilities. You'll think you're great at everything and deny that you need any self-improvement. You won't take constructive criticism or good suggestions from others because you'll believe no one could be as good as you. Therefore, I think being overconfident is not a good thing.

I think today a large portion of people are confident enough and some of them are overconfident as you said. Confident is good but I do think over-confident is another thing. Few "celebrities" here in China are famous for their confidence or to say it in other words is they brags too much and become jokes in our viewpoint. These are extrem examples and I mean I never think it will be good to be overconfident.