Your determination to become a more optimistic person in every part of your life will do more to ensure your success and happiness than any other single quality you can develop.
Brian TracyFocus very clearly on a few small things. The purpose of a business is to give someone something that they want. Have a product or service that's really excellent. [...] What can you offer that no one else can offer and will satisfy them at a higher level than what anyone else can?
Brian Tracy