To start a business, you need to have a vision and be a hard worker. You could say that Bill Gates, co-founder of tech giant Microsoft and occasionally the richest man in the world, qualifies on both counts.
In fact, when he first started Microsoft, he was so driven to work that he memorized the license plate numbers of his employees' cars. That way, he could glance at the parking lot and see what hours his people were working. Although he does say he tried not to hold everyone to his standards of working hours.
Of course, what works for a starting business doesn't always work for a larger business. Gates recalls, "Eventually I had to loosen up, as the company got to a reasonable size." It also helped when he met his wife, Melinda, and decided that working weekends and not taking vacations wasn't how he wanted to spend his life.
If you're starting a business, you can learn a lot from people who have already been through the entire process. Check out this list of classic books from people like Carnegie and Buffet that let you in on the secrets of success.
Speaking of success, there really is one thing you need to know that can make all the difference in the world. Find out what it is.