Set peace of mind as your highest goal, and organize your life around it.
The future belongs to the competent. It belongs to those who are very, very good at what they do. It does not belong to the well meaning.
Follow up and follow through until the task is completed, the prize won.
Some people make that decision at 15 and some people make it at 50, and most people never make it all.
Attitude and personality are as important as experience and ability.
Concentrate on the activities of prospecting, presenting and following-up; the sales will take care of themselves.