I'm convinced that about half of what separates the successful people from the non-successful ones is pure perseverance. Unless you have a lot of passion, 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 Jobs
"If your customer buys once, you made a sale. If they come back, you built trust. If they tell others, you built a brand." — Steve Jobs