Great performers require a measure of confidence that would strike many as absurd, unfounded, and downright irrational. They believe in themselves utterly, without question, even when everyone else is questioning how good (or sane) they are.

Bill Russell is one of the great names in basketball, an all-American... and the only athlete to ever win an NCAA Championship, an Olympic Gold Medal, and a professional championship all in the same year-1956...But Bill Russell had this one problem: He threw up before every game.

Elevated levels of confidence are omnipresent among history's greatest overachievers. Benjamin Franklin, one of the most famous men in the world even before he signed the Declaration of Independence once lamented about humility, "I cannot boast of much success in acquiring the reality of this virtue."

Great performers are, by definition, abnormal; they strive throughout their entire careers to separate themselves from the pack.

Confidence is a resolute state of mind by which you believe nothing is impossible.

We tend to view confidence as a product of accomplishment rather than part of the process that leads there. But supremely confident people were confident long before they achieved anything.

Overachievement is aimed at people who want to maximize their potential. And to do that, I insist you throw caution to the wind, ignore the pleas of parents, coaches, spouses, and bosses to be "realistic." Realistic people do not accomplish extraordinary things because the odds against success stymie them. The best performers ignore the odds. I will show you that instead of limiting themselves to what's probable, the best will pursue the heart-pounding, exciting, really big, difference-making dreams-so long as catching them might be possible.