I'm convinced that about half of what separates the successful entrepreneurs from the non-successful ones is pure perseverance... Unless you have a lot of passion about this, you're not going to survive. You're going to give it up. So you've got to have an idea, or a problem or a wrong that you want to right that you're passionate about otherwise you're not going to have the perseverance to stick it through.
Steve JobsWell, Apple invented the PC as we know it, and then it invented the graphical user interface as we know it eight years later (with the introduction of the Mac). But then, the company had a decade in which it took a nap.
Steve JobsWhat a computer is to me is the most remarkable tool that we have ever come up with. It's the equivalent of a bicycle for our minds.
Steve Jobs