Your ability to discipline yourself to set clear goals, and then to work toward them every day, will do more to guarantee your success than any other single factor.
Brian TracyYour ability to concentrate single-mindedly on one thing, the most important thing, and stay at it until it is complete, is an essential prerequisite for success.
Brian TracyQuickly say, "That's good!" to every setback and adversity, and then find out what is good about it.
Brian Tracy