Develop the winning edge; small differences in your performance can lead to large differences in your results. - Brian Tracy

An average person who develops the habit of setting clear priorities and getting important tasks completed quickly will run circles around a genius who talks a lot and makes wonderful plans but gets very little done.

Never say anything about yourself you don't want to come true

The most important success principle of all was stated by Elbert Hubbard, one of the most prolific writers in American history, at the beginning of the twentieth century. He said, ‘Self-discipline is the ability to do what you should do, when you should do it, whether you feel like it or not.