Perhaps the greatest display of self-discipline is persisting when the going gets tough. Persistence is self-discipline in action.

Develop wisdom in sales by reflecting on your experience, and learning everything you can from every call.

Visualize and think about yourself as you would ideally like to be, not just as you are.

Aspire greatly; anything less than a commitment to excellence becomes an acceptance of mediocrity.

For every difficulty that supposedly stops a person from succeeding there are thousands who have had it a lot worse and have succeeded anyway. So can you.

If you raise your children to feel that they can accomplish any goal or task they decide upon, you will have succeeded as a parent and you will have given your children the greatest of all blessings.

Your incredible brain can take you from rags to riches, from loneliness to popularity, and from depression to happiness and joy - if you use it properly.