There is one prevailing key to success. Do what you resolve to do. Then you'll be a success. If you can discipline yourself to follow through on your promises to yourself, your self-esteem goes up. Persistence is self-discipline in action. Self-discipline is the foundation of self-confidence .
Brian TracyThe sad fact is that people are poor because they have not yet decided to be rich. People are overweight and unfit because they have not yet decided to be thin and fit. People are inefficient time wasters because they haven't yet decided to be highly productive in everything they do.
Brian Tracy