Greed is a terrible thing to have when running a company because it affects everyone around you, and the way you deal with your business and people wont want to work for you anymore.
What i have learned from Steve Jobs speech is that don't settle for less do what you love to do and make sure that you're interested in it. And that you don't have to go to college if that dosent make you happy and it dosent have what you want to do with your life.Also that starting your own buisness can be a struggle and there will be alot of bumps down the road but if you stick with it you will get through., for instance he got fired from his own company he started but he moved on and got through.
What i have learned from Richard Branson the owner of virgin mobile companies is that you can do anything you set your mind to, be interested in the buisness and love what you do, and that you dont have to be extremely smart to start your own buisness.