The ten most powerful two-letter words in the English language are: If it is to be, it is up to me.

I know that you don't know, but you don't know that you don't know! By that I mean there are three reasons why individuals and businesses fail: 1. Arrogance 2. Arrogance 3. Arrogance.

Most fears of rejection rest on the desire for approval from other people. Don't base your self-esteem on their opinions.

You don't need a big close, as many sales reps believe. You risk losing your customer when you save all the good stuff for the end. Keep the customer actively involved throughout your presentation, and watch your results improve.

No business can stay in business without customers. How you treat - or mistreat - them determines how long your doors stay open.

It's nice to be important, but more important to be nice. You don't know who your top customers will be five years from now or where you will be in 10 years. You may have a fancy title, but you will always need help from the people around you.

Fatigue makes fools of us all. It robs you of your skills and your judgment, and it blinds you to creative solutions. It's the best-conditioned athlete, not the most talented, who generally wins when the going gets tough.