The essence of a successful business is really quite simple. It is your ability to offer a product or service that people will pay for at a price sufficiently above your costs, ideally three or four or five times your cost, thereby giving you a profit that enables you to buy and to offer more products and services.
Brian TracyThe one human quality that must be developed is self discipline for success. The will power to force yourself to do what you know you should do when you should do it, whether you like it or not, whether you feel like it or not. Success is tons of discipline.
Brian Tracy