What is a very important skill a person learn in order to be sucessful in the word?

I think the most important reason to success is to be diligent and responsible in your work. We can see so many people succeed in our life, such as Mr. Wang, Mr. Ling, Mr. Bill and …….etc. All of them succeed after they paid a lot of time and money for their jobs.
There are some opinions for choosing this, first of all, if you work hard every day, you will not make the progress delay, and you can earn a very big hand from you boss or colleagues. Second, if you have the responsibility for doing every thing, you will make you progress more effective and quickly. Third, if you do these things well, you will make a good example for your employees.
In conclusion, I think these ideas are very important for dealing with things, no matter the job, homework, housework and …..etc. This is an attitude problem, so we should have more impatience for doing every thing.